如何在 jQuery Validate 中标记必填字段

<form id="myForm">
  <input type="text" class="required" name="name" placeholder="姓名">
  <input type="email" class="required" name="email" placeholder="邮箱">
  <input type="submit" value="提交">
</form>

$(document).ready(function() {
  $("#myForm").validate({
    rules: {
      name: "required",
      email: {
        required: true,
        email: true
      }
    },
    messages: {
      name: "请输入姓名",
      email: {
        required: "请输入邮箱",
        email: "请输入有效的邮箱地址"
      }
    },
    submitHandler: function(form) {
      // 表单验证通过，可以进行提交操作
      form.submit();
    }
  });
});