赋值转换将一个常数值设置到目标属性。

An assign transform sets a constant value to a target attribute.

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图11显示了一个赋值转换，它将Person的prefix属性设置为空。

Figure 11 shows an assign transform that sets the prefix attribute of Person to null.

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例如，如果您有一个希望赋值给许多目标的值，您可以使用赋值来将某个值设置到该变量，然后使用从该变量到多个属性的移动转换。

For example, if you have a value that you want to assign to many targets, you can use an assign to set a value to the variable, then use a move transform from that variable to multiple attributes.

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