C# 關於MVC框架的簡單實例(計算器)


一、需求分析

實現效果

 

二、實現步驟

 

步驟一:新建項目--->Web---->空模板

 

步驟二:添加控制器

步驟三:根據控制器名稱添加視圖

步驟四:添加Models模型  編寫具體的方法

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;

namespace MVCDemo.Models
{
    public class Calculator
    {
        public int getAVG(int sumScore,int sumSubject)
        {
            return sumScore / sumSubject;
        }
    }
}

步驟五:編寫視圖,具體展示的內容


@{
    Layout = null;
}

<!DOCTYPE html>

<html>
<head>
    <meta name="viewport" content="width=device-width" />
    <title>CalculatorView</title>
</head>
<body>
    <form method="post" action="/Calculator/Calculate">
        計算平均成績<br/>
        總成績:<input type="text" name="sumScore" /> <br/>
        總科目:<input type="text" name="sumSubject" /><br/>
        <input type="submit"  value="開始計算"/><br/>
        @ViewData["avgScore"]  
    </form>
   
</body>
</html>

步驟六:編寫控制器活動方法

using MVCDemo.Models;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;

namespace MVCDemo.Controllers
{
    public class CalculatorController : Controller
    {
        // GET: Calculator
        public ActionResult Index()
        {
            return View("CalculatorView");
        }

        public ActionResult Calculate()
        {
            //[1]獲取數據
            int sumScore = Convert.ToInt32(Request.Params["sumScore"]);
            int sumSubject = Convert.ToInt32(Request.Params["sumSubject"]);
            //[2]處理數據
            Calculator objCal = new Calculator();
            int avgScore = objCal.getAVG(sumScore, sumSubject);
            //[3]返回數據
            ViewData["avgScore"] = "平均成績為:" + avgScore;
            return View("CalculatorView");
        }
    }
}

步驟七:修改路由

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using System.Web.Routing;

namespace MVCDemo
{
    public class RouteConfig
    {
        public static void RegisterRoutes(RouteCollection routes)
        {
            routes.IgnoreRoute("{resource}.axd/{*pathInfo}");

            routes.MapRoute(
                name: "Default",
                url: "{controller}/{action}/{id}",
                defaults: new { controller = "Calculator", action = "Index", id = UrlParameter.Optional }
            );
        }
    }
}

 


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