 }

  function testisNum(id) {
    var value = document.getElementById(id).value;
    if (value != "" && isNaN(value)) {
      alert("字节数请填入整数");
      document.getElementById(id).value = "";
      document.getElementById(id).focus();
      return false;
    }
    return true;
  }
</script>

<div class="card">
  <div class="card-body">
    <form class="row align-items-center" role="form" name="ec">
      <div class="col-md-3">
        <select id="bigkey-select" name="appId" class="selectpick