修改字段内容：

PHP">update phome_ecms_download set titleurl=replace(titleurl,'http://www.mokuge.com','http://127.0.0.1');
update phome_ecms_download set titlepic=replace(titlepic,'http://127.0.0.1');
update phome_ecms_download set username=REPLACE(username,'admin','发布者') WHERE id BETWEEN 1 AND 100; 指定批量修改ID=1-100;
update phome_ecms_download set userid=REPLACE(userid,'1','55'),username=REPLACE(username,'改变'),ismember=REPLACE(ismember,'0','1') WHERE id BETWEEN 1 AND 100; 一次批量修改三个字段