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/*日期验证dd/mm/yyyy*/function isDate(str) { var date = str; var result = date.match(/^([0]?[1-9]|[1|2][0-9]|[3][0|1])[/]([0]?[1-9]|[1][0-2])[/]([0-9]{4}|[0-9]{2})$/); if (result == null)

SQL:SELECT regexp_replace(STR,'^\s*','*') AS "去掉左边空白符", regexp_replace(STR,'\s*$','*') AS "去掉右边空白符", regexp_replace(STR,'(^\s*)|(\s*$)','*') AS