WP修改域名和密码
UPDATE wp_posts SET post_content = replace( post_content, 'blog.old.com','blog.new.cn') ;
UPDATE wp_comments SET comment_content = replace(comment_content, 'blog.old.com', 'blog.new.cn') ;
UPDATE wp_comments SET comment_author_url = replace(comment_author_url, 'blog.old.com', 'blog.new.cn') ;
update wp_options set option_value = replace(option_value, 'blog.old.com', 'blog.new.cn') ;