一、Html

<!--form表单提交-->
<form action="" id="nameform" method="post" v-show="false">
  <input type="text" name="systemId">
  <input type="text" name="params">
  <input type="text" name="signData">
</form>

二、javaScript

document.getElementById("nameform").setAttribute("action", url);
document.getElementById("nameform").systemId.value =this.systemId;
document.getElementById("nameform").params.value = this.params;
document.getElementById("nameform").signData.value = this.signData;
document.getElementById("nameform").submit();