<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>一个form表单，两个提交按钮</title>
</head>
<body>
<form action="" name="pay" method="post">
    姓名:<input type="text" name="name"/><br/>
    单价:<input type="text" name="price"/><br/>
    数量:<input type="text" name="num"/><br/>
    总金额:<input type="text" name="total_fee"/><br/>
    <button onclick="send(1)"/>在线支付</button>
    <button onclick="send(2)"/>货到付款</button>
</form>
</body>
</html>
<script>
function send(type) {
    var url = '';
    if(type === 1){
        url = 'zaixianzhifu';
    }else{
        url = 'huodaofukuan';
    }
    document.pay.action = url;
    document.pay.submit();
}
</script>