可以啊~~~

不行啊！~~~~
                     if(C_email.indexOf("@") == -1)
                {
                    alert("E_mail填写有误");
                }
                    else
                   {
                          from1.action = "land.php"
                          from1.submit()
                   }
他说不行

from1??写错了吧！ form1