将字符指针和字符字节声明为无符号类型的，这样可以防止8位字符的符号扩展问题。

Declare character Pointers and character bytes as unsigned to avoid sign extension problems with 8-bit characters.

youdao

将字符指针和字符字节声明为无符号类型的，这样可以防止8位字符的符号扩展问题。

Declare character Pointers and character bytes as unsigned to avoid sign extension problems with 8-bit characters.

youdao