If both values are of type CHAR, the result is also of type CHAR.

如果两个值都是char类型，结果还是char类型。

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The unsigned char data type, and byte data type will yield incorrect results and act as though they are signed types i. e. type char.

无符号字符数据类型和二进制数据类型将产生错误的计算结果，会当成有符号的数据类型进行计算。

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The unsigned char data type, and byte data type will yield incorrect results and act as though they are signed types i. e. type char.

无符号字符数据类型和二进制数据类型将产生错误的计算结果，会当成有符号的数据类型进行计算。

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