表单怎么进行验证?_html/css_WEB-ITnose
<script type="text/javascript"> function checkNum() { return; } <form action="?step=2" method="post"> <button type="submit" class="mt15 redbtn" onclick="checkNum();">提交退换货申请 </button> </form>
写成上面这样不起作用,照样提交到服务器
写成下面这样就有作用
<form action="?step=2" method="post"> <button type="submit" class="mt15 redbtn" onclick="javascript:return false;">提交退换货申请 </button> </form>
咋办呢?我要在checkNum()方法里面进行验证的
回复讨论(解决方案)
return confirm(这里面写的你函数);
因为你的按钮类型是submit。使用button就不会出现这个问题。另外你的<script>括起来啊。 </script>
不能用onclick,应该用onSubmit
不然人家用键盘怎么办?
另外应该是return checkNum();
谢谢大家,3楼说的对

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