空白符

1、去空白符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 ......

static inline bool is_ident_char(char s) { return ((s >= 'a' && s <= 'z') || (s >= 'A' && s <= 'Z') || (s >= '0' && s <= '9') || s == '_' ); } static ......