字符串函数举例 qwerty y= Itrim(x) F rtrim(x) w= trim(x) print x qwerty print qwerty print z qwerty <<> 2021/2222021/2/22 5 字符串函数举例 x= " qwertyu " y= ltrim(x) z= rtrim(x) w= trim(x) print x qwertyu print y qwertyu print z qwertyu