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-**幂赋值**（**`**=`**）运算符将左侧变量的值设置为右操作数的幂次方。
+**幂赋值**（**`**=`**）对两个操作数执行[幂运算](/zh-CN/docs/Web/JavaScript/Reference/Operators/Exponentiation)，并将结果赋给左操作数。
 
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