Parameter names (reference variables) should have unique names.
参数名(引用变量)应该使用唯一的名称。
Note that you can use closures and reference variables later too.
注意,稍后您也可以使用闭包和引用变量。
Closures are functions that reference variables from the scope enclosing the function definition.
闭包本质上是一个函数和其引用的变量的统一定义。
Expressions to test the type compatibility of two object reference variables with various data types.
表达式测试两个对象引用变量与各数据类型的类型兼容性。
Expressions to test the type compatibility of two object reference variables with various data types.
表达式测试两个对象引用变量与各数据类型的类型兼容性。
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