For these functions, a printable character is a character with a visible representation;whitespace is one of space, tab, vertical tab, return, newline, and formfeed;
表中的这些函数,可打印的字符是指那些可以表示的字符,空白字符则是空、制表符、垂直制表符、回车符、换行符和进纸符中的任意一种;
For these functions, a printable character is a character with a visible representation;whitespace is one of space, tab, vertical tab, return, newline, and formfeed;
表中的这些函数,可打印的字符是指那些可以表示的字符,空白字符则是空、制表符、垂直制表符、回车符、换行符和进纸符中的任意一种;
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