1.新建 a.html 代码如下: <!doctype html> <html> <head> <meta charset=’utf-8′> <title>iframe式ajax调用</title> </head> <body> <form action=’b.php’ method=’post’ name=” id=” target=’formTarget’> <input type=’text’ name=’username’ id=” placeholder=” value=” /> <input type=’submit’ name=” value=’提交’ /> <span id=
