anchor.diff:  onDataLoaded_tea(responseText) {
   
     var jsonString = responseText;
  -  Map tea_allDATA1= JSON.decode(jsonString);
  -  Map tea_allDATA2= JSON.decode( tea_allDATA1["teaname0"].toString());
  +  var tea_allDATA1= JSON.decode(jsonString);
  +  var tea_allDATA2= JSON.decode( tea_allDATA1["teaname0"].toString());
     querySelector('#tea_name').text=tea_allDATA2["teaname"];
     querySelector('#tea_id').text=tea_allDATA2["teaid"];
   /*var i;
  
positive.code: //和学生一样
    var url = "$host/teacher/{teaid_x}"; // 链接到学生主页面
    var request = HttpRequest.getString(url).then(onDataLoaded_tea);
  }
  
  
  
negative.code: 
  */
  }
  
  onDataLoaded_tea_stu(responseText) {
    var jsonString = responseText;
    //用类实现有问题  List<student> stu= decode(responseText, type:const TypeHelper<List<student>>().type);
    List stu=JSON.decode(jsonString);
    var stu_allDATA2= stu[0];
    var i;
    for (i = 1; i <= 30; i++) {
      querySelector('#stuname1').text = "学生姓名：" + stu_allDATA2["name"];
      querySelector('#stuid1').text = "学生学号：" + stu_allDATA2["id"].toString();
      querySelector("#xkcjscore1").text = stu_allDATA2["xkcj"];
      querySelector("#xskyscore1").text = stu_allDATA2["xsky"];
      querySelector("#shhdscore1").text = stu_allDATA2["shhd"];
      querySelector("#jxjlevelscore1").text = stu_allDATA2["jxj"];
    }
  }
  
  /*
  
  /// 显示成绩分析扇形图
  