ajax+post+body+raw请求方式

  let name = 'xiaohei';
  let age = 18;
  let data = {
      "info":[{
          "name":name,
          "age":age
      }]
  }
  //请求方式代码
  $.ajax({
      type: "POST",
      url: "http://localhost:8000/",  //接口地址
      contentType: "application/json", //必须有
      dataType: "json", //表示返回值类型，不必须
      data: JSON.stringify(data), 
      success: function (res) {
          console(JSON.stringify(res));
      }
  });