前輩們好 又是我

今天練習fetch 看到這個問題

試過GOOGLE也知道應該要用async awiat寫法來寫

但完全不知道該怎麼下手了 故來求救前輩們 希望不吝嗇拯救分享一下

問題一:

<%@ WebHandler Language="C#" Class="test" %>

using System;
using System.Web;
using System.Data;
using System.Collections.Generic;
using System.Threading;



public class test : IHttpHandler {
    JDB.JDB Main = new JDB.JDB();

    public void ProcessRequest(HttpContext context)
    { 
            string a = DateTime.Now.ToString("F");

        context.Response.ContentType = "text/plain; charset=utf-8";
        context.Response.AddHeader("Access-Control-Allow-Origin", "*");
            Random RN  =new Random();
            int t = RN.Next(5000);

        Thread.Sleep(t);
        context.Response.Write(t.ToString().PadLeft(4,'-') +">>" + a);

     }

    public bool IsReusable {
        get {
            return false;
        }
    }

    public string SQLToJSON(string sqlstr)
    {
        DataTable dt = Main.GetDataSet(sqlstr);
        System.Web.Script.Serialization.JavaScriptSerializer serializer = new System.Web.Script.Serialization.JavaScriptSerializer();
        List<Dictionary<string, object>> rows = new List<Dictionary<string, object>>();
        Dictionary<string, object> row;
        foreach (DataRow dr in dt.Rows)
        {
            row = new Dictionary<string, object>();
            foreach (DataColumn col in dt.Columns)
            {
                row.Add(col.ColumnName, dr[col]);
            }
            rows.Add(row);
        }
        return serializer.Serialize(rows);
    }

}

問題二: