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.

youdao

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.

youdao