宏库（Macro Library） 用于存放大量宏或自含式图表（可作为节点放置到其他蓝图中）。它们会保存常用的节点序列（包括执行和数据传输的输入和输出），因此可有效节约时间。
蓝图宏库不能包含变量，不能从其它蓝图中继承，也不能直接放置在关卡中。对蓝图宏库中的宏做出修改后只有在客户端蓝图重新编译后才会生效。
创建宏库
在该示例中我们创建由两个宏组成的宏库，一个用于添加 "生命值" 变量，另一个用于调整指定 Actor 的大小。
在该示例中我们使用的是启用了 初学者内容（Starter Content） 的Blueprint Third Person Project项目。
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在内容浏览器中，选择 添加（Add） > 蓝图（Blueprints） > 蓝图宏库（Blueprint Macro Library）
(programming-and-scripting/blueprints-visual-scripting/UserGuide/Types/MacroLibrary).
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在 选择父级类（Pick Parent Class） 中选择 Actor 作为你的父级类。
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为你的宏库输入一个名称，然后 双击 来将其打开。
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这会显示 蓝图宏（Blueprint Macro） 界面。
创建"Scale Up"宏
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找到 我的蓝图（MyBluprint） 窗口，选中默认宏并且按下 F2，将其重命名为 ScaleUp 。
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在 细节（Details） 面板中，找到 输入（Inputs） 分类然后点击 添加（Add） (+) 按钮来创建两个新的输入。将第一个输入命名为 In 并设置为 Exec 类型，然后将另一个命名为 InActor 并设置为 Actor 类型。
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找到 输出（Outputs） 分类并点击 添加（Add） (+) 按钮来创建一个新的输出，命名为 Out 并设置为 Exec 类型。
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在 ScaleUp 宏的图表中，复制或者重建以下蓝图脚本。
该宏被调用的时候，它会获取作为 InActor 所提供的Actor，并将其尺寸放大1.25倍，然后设置 Target （指定为 InActor 的Actor）的新3D大小。现在你可以使用这个宏来改变任意Actor的大小。
创建"Add Health"宏
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从 我的蓝图（MyBlueprint） 窗口中添加另一个宏，命名为 AddHealth。
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在 AddHealth 的 细节（Details） 面板中，找到 输入（Inputs） 分类然后点击 添加（Add） (+) 按钮来创建两个新的输入。将第一个输入命名为 In 并设置为 Exec 类型，然后将另一个命名为 GetHealth 并设置为 浮点类型。
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找到 输出（Outputs） 分类并点击 添加（Add） (+) 按钮来创建两个新的输出，第一个命名为 Out 并设置为 Exec 类型，另一个命名为 SetHealth 并设置为浮点类型。
上图中我们使用一个名为 GetHealth 的浮点值，通过 SetHealth 输出节点进行传递之前将把此值添加到该节点。
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在 AddHealth 宏的图表中，如下所示重建节点网络。
示例中，在输出结果值到 SetHealth 之前，为 GetHealth 浮点值增加 50。
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保存（Save） 并关闭蓝图宏库。
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在
Content/ThirdPerson/Blueprints文件夹中，打开 BP_ThirdPersonCharacter 蓝图。
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在 我的蓝图（MyBlueprint） 窗口中，找到 变量（Variables） 分类并点击添加 (+) 来创建一个新的 浮点 变量，命名为 Health，然后点击 编译（Compile）。
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在下方的事件图表中，复制或者重建蓝图脚本。
在下方的代码中，我们在 Q 键按下时调用 AddHealth 宏。它将抓取 Health 变量（执行增加的宏脚本）并通过输出引脚 SetHealth 进行更新，然后再显示到屏幕上。 我们先使用 E 键检查 Health 是否大于 100，然后在Actor Self（即为 ThirdPersonCharacter）上调用 ScaleUp 宏。
Begin Object Class=/Script/BlueprintGraph.K2Node_InputKey Name="K2Node_InputKey_0" InputKey=Q NodePosX=2704 NodePosY=176 NodeGuid=E5A6981B4B7E9AAF2F97DFB76CDEBC70 CustomProperties Pin (PinId=2875808747CDC79CA568268E89221657,PinName="Pressed",Direction="EGPD_Output",PinType.PinCategory="exec",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,LinkedTo=(K2Node_MacroInstance_0 3BE1E4D84315BB0E0C825498D65DAF43,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) CustomProperties Pin (PinId=3E496EEF45436D5BF43D47B06CC03737,PinName="Released",Direction="EGPD_Output",PinType.PinCategory="exec",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) CustomProperties Pin (PinId=AE69AEC448E0314BBD992B804DCC36BD,PinName="Key",Direction="EGPD_Output",PinType.PinCategory="struct",PinType.PinSubCategory="",PinType.PinSubCategoryObject=ScriptStruct'"/Script/InputCore.Key"',PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,DefaultValue="None",AutogeneratedDefaultValue="None",PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) End Object Begin Object Class=/Script/BlueprintGraph.K2Node_MacroInstance Name="K2Node_MacroInstance_0" MacroGraphReference=(MacroGraph=EdGraph'"/Game/ExampleMacroLibrary.ExampleMacroLibrary:AddHealth"',GraphBlueprint=Blueprint'"/Game/ExampleMacroLibrary.ExampleMacroLibrary"',GraphGuid=0E2D850F497D22DFA649599A52271D92) NodePosX=2864 NodePosY=176 NodeGuid=E33E97954E477070F03B59B4573FE598 CustomProperties Pin (PinId=3BE1E4D84315BB0E0C825498D65DAF43,PinName="In",PinType.PinCategory="exec",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,LinkedTo=(K2Node_InputKey_0 2875808747CDC79CA568268E89221657,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) CustomProperties Pin (PinId=143E16804EEF3C23A2BCF8B66DC8F916,PinName="GetHealth",PinType.PinCategory="real",PinType.PinSubCategory="double",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,LinkedTo=(K2Node_VariableGet_0 C5E66A664E2761EF76FFE88E674B6223,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) CustomProperties Pin (PinId=CBE298A74DBD79676B0A3283BF97A387,PinName="Out",Direction="EGPD_Output",PinType.PinCategory="exec",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,LinkedTo=(K2Node_VariableSet_0 FAACC7804C0A991726DD6A9C61F7C5FA,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) CustomProperties Pin (PinId=02B33E4146DE45D36F1F3282DAAF8C75,PinName="SetHealth",Direction="EGPD_Output",PinType.PinCategory="real",PinType.PinSubCategory="double",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,LinkedTo=(K2Node_VariableSet_0 C1A920C94F853E11F870CA9479A60B2F,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) End Object Begin Object Class=/Script/BlueprintGraph.K2Node_VariableGet Name="K2Node_VariableGet_0" VariableReference=(MemberName="Health",MemberGuid=C0A66D7649DAC99E39B814A31AFC8047,bSelfContext=True) NodePosX=2688 NodePosY=304 NodeGuid=79ABC4DA43969B8CC5F251988A40EEA3 CustomProperties Pin (PinId=C5E66A664E2761EF76FFE88E674B6223,PinName="Health",Direction="EGPD_Output",PinType.PinCategory="real",PinType.PinSubCategory="double",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,DefaultValue="0.0",AutogeneratedDefaultValue="0.0",LinkedTo=(K2Node_MacroInstance_0 143E16804EEF3C23A2BCF8B66DC8F916,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) CustomProperties Pin (PinId=42A088D1499E339D876A1580D947FFCD,PinName="self",PinFriendlyName=NSLOCTEXT("K2Node", "Target", "Target"),PinType.PinCategory="object",PinType.PinSubCategory="",PinType.PinSubCategoryObject=BlueprintGeneratedClass'"/Game/ThirdPerson/Blueprints/BP_ThirdPersonCharacter.BP_ThirdPersonCharacter_C"',PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,PersistentGuid=00000000000000000000000000000000,bHidden=True,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) End Object Begin Object Class=/Script/BlueprintGraph.K2Node_VariableSet Name="K2Node_VariableSet_0" VariableReference=(MemberName="Health",MemberGuid=C0A66D7649DAC99E39B814A31AFC8047,bSelfContext=True) NodePosX=3120 NodePosY=192 NodeGuid=5E61E9D84F63E32EFCCED68EB374A8B5 CustomProperties Pin (PinId=FAACC7804C0A991726DD6A9C61F7C5FA,PinName="execute",PinType.PinCategory="exec",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,LinkedTo=(K2Node_MacroInstance_0 CBE298A74DBD79676B0A3283BF97A387,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) CustomProperties Pin (PinId=6AA291F74312AFA1194BD0976727494F,PinName="then",Direction="EGPD_Output",PinType.PinCategory="exec",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,LinkedTo=(K2Node_CallFunction_4 CF3A94574E1321C5E96A6A97159C1B97,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) CustomProperties Pin (PinId=C1A920C94F853E11F870CA9479A60B2F,PinName="Health",PinType.PinCategory="real",PinType.PinSubCategory="double",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,DefaultValue="0.0",AutogeneratedDefaultValue="0.0",LinkedTo=(K2Node_MacroInstance_0 02B33E4146DE45D36F1F3282DAAF8C75,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) CustomProperties Pin (PinId=0761EFD14A7BB8C1A2AFB595D8B290BA,PinName="self",PinFriendlyName=NSLOCTEXT("K2Node", "Target", "Target"),PinType.PinCategory="object",PinType.PinSubCategory="",PinType.PinSubCategoryObject=BlueprintGeneratedClass'"/Game/ThirdPerson/Blueprints/BP_ThirdPersonCharacter.BP_ThirdPersonCharacter_C"',PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,PersistentGuid=00000000000000000000000000000000,bHidden=True,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) CustomProperties Pin (PinId=80BE8C1242D4CF91D2E3EF9C90CA6023,PinName="Output_Get",PinToolTip="Retrieves the value of the variable, can use instead of a separate Get node",Direction="EGPD_Output",PinType.PinCategory="real",PinType.PinSubCategory="double",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,DefaultValue="0.0",AutogeneratedDefaultValue="0.0",LinkedTo=(K2Node_CallFunction_0 A7E7124C4258922F0B97859CC93DC840,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) End Object Begin Object Class=/Script/BlueprintGraph.K2Node_CallFunction Name="K2Node_CallFunction_4" FunctionReference=(MemberParent=Class'"/Script/Engine.KismetSystemLibrary"',MemberName="PrintString") NodePosX=3424 NodePosY=176 AdvancedPinDisplay=Hidden EnabledState=DevelopmentOnly NodeGuid=F78EA4F74AAD59667F78EABCF7A48063 CustomProperties Pin (PinId=CF3A94574E1321C5E96A6A97159C1B97,PinName="execute",PinToolTip="\nExec",PinType.PinCategory="exec",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,LinkedTo=(K2Node_VariableSet_0 6AA291F74312AFA1194BD0976727494F,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) CustomProperties Pin (PinId=285A41114DA0EBB02E392386FA397F52,PinName="then",PinToolTip="\nExec",Direction="EGPD_Output",PinType.PinCategory="exec",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) CustomProperties Pin (PinId=6CEC617742290B838255DFBB984E6855,PinName="self",PinFriendlyName=NSLOCTEXT("K2Node", "Target", "Target"),PinToolTip="Target\nKismet System Library Object Reference",PinType.PinCategory="object",PinType.PinSubCategory="",PinType.PinSubCategoryObject=Class'"/Script/Engine.KismetSystemLibrary"',PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,DefaultObject="/Script/Engine.Default__KismetSystemLibrary",PersistentGuid=00000000000000000000000000000000,bHidden=True,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) CustomProperties Pin (PinId=C8F38F074818DA4BD8711F8F0DDD8C29,PinName="WorldContextObject",PinToolTip="World Context Object\nObject Reference",PinType.PinCategory="object",PinType.PinSubCategory="",PinType.PinSubCategoryObject=Class'"/Script/CoreUObject.Object"',PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=True,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,PersistentGuid=00000000000000000000000000000000,bHidden=True,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) CustomProperties Pin (PinId=676324DC46F0DAF1B10EAB86053D234A,PinName="InString",PinToolTip="In String\nString\n\nThe string to log out",PinType.PinCategory="string",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,DefaultValue="Hello",AutogeneratedDefaultValue="Hello",LinkedTo=(K2Node_CallFunction_0 E77420E64E5FC68380EF968267F02413,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) CustomProperties Pin (PinId=D098577A493D2E87F2969CA6C9A036D9,PinName="bPrintToScreen",PinToolTip="Print to Screen\nBoolean\n\nWhether or not to print the output to the screen",PinType.PinCategory="bool",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,DefaultValue="true",AutogeneratedDefaultValue="true",PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=True,bOrphanedPin=False,) CustomProperties Pin (PinId=162436F647CD3130474359B8C33FA5E7,PinName="bPrintToLog",PinToolTip="Print to Log\nBoolean\n\nWhether or not to print the output to the log",PinType.PinCategory="bool",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,DefaultValue="true",AutogeneratedDefaultValue="true",PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=True,bOrphanedPin=False,) CustomProperties Pin (PinId=0177100D4515167F83F48E8191C0C5D8,PinName="TextColor",PinToolTip="Text Color\nLinear Color Structure\n\nThe color of the text to display",PinType.PinCategory="struct",PinType.PinSubCategory="",PinType.PinSubCategoryObject=ScriptStruct'"/Script/CoreUObject.LinearColor"',PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,DefaultValue="(R=0.000000,G=0.660000,B=1.000000,A=1.000000)",AutogeneratedDefaultValue="(R=0.000000,G=0.660000,B=1.000000,A=1.000000)",PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=True,bOrphanedPin=False,) CustomProperties Pin (PinId=DACCE443410317D4917E88AC3B26DEE9,PinName="Duration",PinToolTip="Duration\nFloat (single-precision)\n\nThe display duration (if Print to Screen is True). Using negative number will result in loading the duration time from the config.",PinType.PinCategory="real",PinType.PinSubCategory="float",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,DefaultValue="2.000000",AutogeneratedDefaultValue="2.000000",PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=True,bOrphanedPin=False,) CustomProperties Pin (PinId=432DBD2C4ECA766E15E2A7874F3F7969,PinName="Key",PinToolTip="Key\nName\n\nIf a non-empty key is provided, the message will replace any existing on-screen messages with the same key.",PinType.PinCategory="name",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=True,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,DefaultValue="None",AutogeneratedDefaultValue="None",PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=True,bOrphanedPin=False,) End Object Begin Object Class=/Script/BlueprintGraph.K2Node_CallFunction Name="K2Node_CallFunction_0" bIsPureFunc=True FunctionReference=(MemberParent=Class'"/Script/Engine.KismetStringLibrary"',MemberName="Conv_DoubleToString") NodePosX=3280 NodePosY=240 NodeGuid=3056D3D14EA8E2D766417E907931D2A1 CustomProperties Pin (PinId=FE167DCF459E5043B65DB8BEF26A21B6,PinName="self",PinFriendlyName=NSLOCTEXT("K2Node", "Target", "Target"),PinToolTip="Target\nKismet String Library Object Reference",PinType.PinCategory="object",PinType.PinSubCategory="",PinType.PinSubCategoryObject=Class'"/Script/Engine.KismetStringLibrary"',PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,DefaultObject="/Script/Engine.Default__KismetStringLibrary",PersistentGuid=00000000000000000000000000000000,bHidden=True,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) CustomProperties Pin (PinId=A7E7124C4258922F0B97859CC93DC840,PinName="InDouble",PinToolTip="In Double\nFloat (double-precision)",PinType.PinCategory="real",PinType.PinSubCategory="double",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,DefaultValue="0.0",AutogeneratedDefaultValue="0.0",LinkedTo=(K2Node_VariableSet_0 80BE8C1242D4CF91D2E3EF9C90CA6023,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) CustomProperties Pin (PinId=E77420E64E5FC68380EF968267F02413,PinName="ReturnValue",PinToolTip="Return Value\nString\n\nConverts a double value to a string",Direction="EGPD_Output",PinType.PinCategory="string",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,LinkedTo=(K2Node_CallFunction_4 676324DC46F0DAF1B10EAB86053D234A,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) End Object Begin Object Class=/Script/BlueprintGraph.K2Node_InputKey Name="K2Node_InputKey_1" InputKey=E NodePosX=2704 NodePosY=416 NodeGuid=C17DDABC4F571126206118A84DD0B955 CustomProperties Pin (PinId=E6C91F8F41AD4E5437C805BC57D9CA85,PinName="Pressed",Direction="EGPD_Output",PinType.PinCategory="exec",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,LinkedTo=(K2Node_IfThenElse_0 C8870ADC4892BE5F3FB378833D34E8AA,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) CustomProperties Pin (PinId=AEA5C18745BCA7148D371BBCBE5C0778,PinName="Released",Direction="EGPD_Output",PinType.PinCategory="exec",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) CustomProperties Pin (PinId=4549DD394AEE351A49DEA4A5967A8517,PinName="Key",Direction="EGPD_Output",PinType.PinCategory="struct",PinType.PinSubCategory="",PinType.PinSubCategoryObject=ScriptStruct'"/Script/InputCore.Key"',PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,DefaultValue="None",AutogeneratedDefaultValue="None",PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) End Object Begin Object Class=/Script/BlueprintGraph.K2Node_IfThenElse Name="K2Node_IfThenElse_0" NodePosX=2944 NodePosY=416 NodeGuid=60634007443CBB2C649D70883C0CEC8E CustomProperties Pin (PinId=C8870ADC4892BE5F3FB378833D34E8AA,PinName="execute",PinType.PinCategory="exec",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,LinkedTo=(K2Node_InputKey_1 E6C91F8F41AD4E5437C805BC57D9CA85,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) CustomProperties Pin (PinId=5A06DD8A4472D13B93B0439A054CD30C,PinName="Condition",PinType.PinCategory="bool",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,DefaultValue="true",AutogeneratedDefaultValue="true",LinkedTo=(K2Node_PromotableOperator_2 A5F6D4F74E4320C8479EDDA458AAAD3B,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) CustomProperties Pin (PinId=69CDCE5D48CAAC022A3806B58ADD50FE,PinName="then",PinFriendlyName=NSLOCTEXT("K2Node", "true", "true"),Direction="EGPD_Output",PinType.PinCategory="exec",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,LinkedTo=(K2Node_MacroInstance_1 C12114A84F781CF2255C0D921404AF97,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) CustomProperties Pin (PinId=51C85A7E44416B39FE37269A99542199,PinName="else",PinFriendlyName=NSLOCTEXT("K2Node", "false", "false"),Direction="EGPD_Output",PinType.PinCategory="exec",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) End Object Begin Object Class=/Script/BlueprintGraph.K2Node_VariableGet Name="K2Node_VariableGet_1" VariableReference=(MemberName="Health",MemberGuid=C0A66D7649DAC99E39B814A31AFC8047,bSelfContext=True) NodePosX=2624 NodePosY=560 NodeGuid=81106325481B08B5F7B526BCA959B936 CustomProperties Pin (PinId=FF2971FA42F695EB81D9AA935F70BB8B,PinName="Health",Direction="EGPD_Output",PinType.PinCategory="real",PinType.PinSubCategory="double",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,DefaultValue="0.0",AutogeneratedDefaultValue="0.0",LinkedTo=(K2Node_PromotableOperator_2 204BD1E54B3F505D7FBE32B0F84E2C42,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) CustomProperties Pin (PinId=16B8A191403F8D5FD89A888860E4CF1A,PinName="self",PinFriendlyName=NSLOCTEXT("K2Node", "Target", "Target"),PinType.PinCategory="object",PinType.PinSubCategory="",PinType.PinSubCategoryObject=BlueprintGeneratedClass'"/Game/ThirdPerson/Blueprints/BP_ThirdPersonCharacter.BP_ThirdPersonCharacter_C"',PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,PersistentGuid=00000000000000000000000000000000,bHidden=True,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) End Object Begin Object Class=/Script/BlueprintGraph.K2Node_PromotableOperator Name="K2Node_PromotableOperator_2" bIsPureFunc=True FunctionReference=(MemberParent=Class'"/Script/Engine.KismetMathLibrary"',MemberName="Greater_DoubleDouble") NodePosX=2784 NodePosY=544 NodeGuid=496EE77C435B6A5CFEDA28851CF9F110 CustomProperties Pin (PinId=204BD1E54B3F505D7FBE32B0F84E2C42,PinName="A",PinToolTip="A\nFloat (double-precision)",PinType.PinCategory="real",PinType.PinSubCategory="double",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,LinkedTo=(K2Node_VariableGet_1 FF2971FA42F695EB81D9AA935F70BB8B,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) CustomProperties Pin (PinId=E6E0AC614411CE85D898EE95E63E54D7,PinName="B",PinToolTip="B\nFloat (double-precision)",PinType.PinCategory="real",PinType.PinSubCategory="double",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,DefaultValue="100.000000",PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) CustomProperties Pin (PinId=A5F6D4F74E4320C8479EDDA458AAAD3B,PinName="ReturnValue",PinToolTip="Return Value\nBoolean\n\nReturns true if A is greater than B (A > B)",Direction="EGPD_Output",PinType.PinCategory="bool",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,LinkedTo=(K2Node_IfThenElse_0 5A06DD8A4472D13B93B0439A054CD30C,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) CustomProperties Pin (PinId=D84E3ACC47E1C71E7AD77884454F3DE2,PinName="ErrorTolerance",PinToolTip="Error Tolerance\n",PinType.PinCategory="",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,PersistentGuid=00000000000000000000000000000000,bHidden=True,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) End Object Begin Object Class=/Script/BlueprintGraph.K2Node_MacroInstance Name="K2Node_MacroInstance_1" MacroGraphReference=(MacroGraph=EdGraph'"/Game/ExampleMacroLibrary.ExampleMacroLibrary:ScaleUp"',GraphBlueprint=Blueprint'"/Game/ExampleMacroLibrary.ExampleMacroLibrary"',GraphGuid=A9FBEA5D476F420729FBD6A7867990AE) NodePosX=3328 NodePosY=416 NodeGuid=119A34204569D0B78E82589AABE4A771 CustomProperties Pin (PinId=C12114A84F781CF2255C0D921404AF97,PinName="In",PinType.PinCategory="exec",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,LinkedTo=(K2Node_IfThenElse_0 69CDCE5D48CAAC022A3806B58ADD50FE,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) CustomProperties Pin (PinId=571BBCBA46B6858BFBCCEEAE2D481F8C,PinName="InActor",PinType.PinCategory="object",PinType.PinSubCategory="",PinType.PinSubCategoryObject=Class'"/Script/Engine.Actor"',PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,LinkedTo=(K2Node_Self_0 1095198443A1536C7B4852A8F613E369,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) CustomProperties Pin (PinId=22D784C34A52D4FA4CC74FB3AFEE5CB8,PinName="Out",Direction="EGPD_Output",PinType.PinCategory="exec",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) End Object Begin Object Class=/Script/BlueprintGraph.K2Node_Self Name="K2Node_Self_0" NodePosX=3152 NodePosY=480 NodeGuid=15CBC8464E459AFDAD01ECBE8BB7F763 CustomProperties Pin (PinId=1095198443A1536C7B4852A8F613E369,PinName="self",Direction="EGPD_Output",PinType.PinCategory="object",PinType.PinSubCategory="self",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,LinkedTo=(K2Node_MacroInstance_1 571BBCBA46B6858BFBCCEEAE2D481F8C,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,) End Object -
编译（Compile） 并在编辑器中 播放（Play）。
最终效果
在上述视频中，我们按下 E 键尝试调用 ScaleUp 宏。蓝图会首先检查默认设为0的 Health 值。之后，我们按下 Q 调用 AddHealth 宏，在按下几次按键后，你会发现角色的生命值和比例都放大了。只要提供生命值和目标Actor，这些宏便可以从其它任意蓝图中调用。
创建宏
本质上来说，宏（Macro） 和节点的重叠图表原理相同。他们都有通道节点设计的进入点和离开点。每个通道可拥有任意数量的执行或数据引脚。在其他蓝图和图表上使用时，这些引脚在宏节点上均为可见。
访问创建宏页面来参考创建宏的示例。
