Character type functions These functions check whether a character or string falls into a certain character class according to the I current locale.

这些函数根据当前现场的i检查一个字符或字符串是否在一个字符类里面！

youdao

Character type functions These functions check whether a character or string falls into a certain character class according to the I current locale.

这些函数根据当前现场的i检查一个字符或字符串是否在一个字符类里面！

youdao