vue/react/js 提交form表单

//创建订单后payParams 赋值给input并通过form表单提交支付

markFormSubmit(payParams){
    var form1=document.createElement("form");
    form1.id="form1";
    form1.name="form1";
    form1.target="_self";
    form1.setAttribute("target","_self");
    document.body.appendChild(form1);
    var input = document.createElement("input");
    input.type="hidden";
    input.name="orderType";
    input.value=payParams.orderType;
    form1.appendChild(input);

    var input1 = document.createElement("input");
    input1.type="hidden";
    input1.name="amount";
    input1.value=payParams.amount;
    form1.appendChild(input1);

    var input2 = document.createElement("input");
    input2.type="hidden";
    input2.name="tradeNum";
    input2.value=payParams.tradeNum;
    form1.appendChild(input2);

    var input3 = document.createElement("input");
    input3.type="hidden";
    input3.name="sign";
    input3.value=payParams.sign;
    form1.appendChild(input3);


   //微信环境添加input note
    var ua = window.navigator.userAgent.toLowerCase();
    console.log(ua);//mozilla/5.0 (iphone; cpu iphone os 9_1 like mac os x) applewebkit/601.1.46 (khtml, like gecko)version/9.0 mobile/13b143 safari/601.1
    if (ua.match(/MicroMessenger/i) == 'micromessenger') {
      var input16 = document.createElement("input");
      input16.type="hidden";
      input16.name="note";
      input16.value=payParams.note;
      form1.appendChild(input16);
    }

    form1.method="POST";
    form1.action="https://dddddddddd/saveOrder";

    form1.submit();
    document.body.removeChild(form1);

  }