命令总解:update 表的名称 set 此表要替换的字段名=REPLACE(此表要替换的字段名, '原来内容', '新内容')如 UPDATE Whir_ProductRelese SET ReleseName=REPLACE(ReleseName,'http://www.19jp.com','http://19jp.com')举例说明:1)把backupfile表里url的字段内容里为http://www.19jp.com的字符全部改为http://19jp.com。update backupfile set url=REPLACE(url,'http://www.19jp.com','h