阳光上的桥的回答trim用来把字符串前后的空白去处，删除以下内容：" " (ASCII 32 (0x20)), an ordinary space. "\t" (ASCII 9 (0x09)), a tab. "\n" (ASCII 10 (0x0A)), a new line (line feed). "\r" (ASCII 13 (0x0D)), a carriage return. "\0" (ASCII 0 (0x00)), the NUL-byte. "\x0B" (ASCII 11 (0x0B)), a vertical tab. ufxin123的回答我只能告诉你trim函数的作用，trim()取消字符串前后空格的 最常用的地方是给数据库传值用的 我只懂这么多 |
