MVC小练习——计算器(求平均数)

Bertha 。 2021-06-24 16:11 360阅读 0赞

First step：create a new MVC project

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change the solution name and project name.  
then choose project template:

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![2789632-474fdae68a5a1a6d.png][]

Second step:add a controller and a view and a class.

![2789632-fe8cb45fc84a951d.png][]

Third step: edit the Index1.aspx in Views;

<div>
            <form method="post" action="/Calculator/GetAverage">
                请输入总分数:<input type="text" name="sumScore"/>
                请输入总科目：<input type="text" name="sumObject">
                <input type="submit" value="计算">
            </form>
        </div>

fourth step: edit the models named GetAverage;

public class GetAverage
        {
            public int GetAvg(int sumScore, int sumObject) 
            {
                return sumObject == 0 ? 0 : sumScore / sumObject; 
            }
        }

fifth step: edit the controler ;

public ActionResult GetAverage()
            {
                //接收数据
                int sumScore = Convert.ToInt32(Request.Params["sumScore"]);
                int sumObject = Convert.ToInt32(Request.Params["sumObject"]);
                //调用models里的方法
                GetAverage getAvg = new GetAverage();
                int result = getAvg.GetAvg(sumScore,sumObject);
                //保存需要传递的数据
                ViewData["avgScore"] = "平均成绩为：" + result;
                return View("Index1");
    
            }

last step: in Views, get data from controler;

<%=ViewData["avgScore"] %>

ok, game over.

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[2789632-acc6b3986e56908a.png]: /images/20210615/06d5c1cc39614e78a02da95bbbb6fefb.png
[2789632-0db48b20e54cae1d.png]: /images/20210615/3fdc257bb3a94a3c904db89a72e7ee43.png
[2789632-474fdae68a5a1a6d.png]: /images/20210615/2d1170c6f3eb4952a36961f5d78b8bb3.png
[2789632-fe8cb45fc84a951d.png]: /images/20210615/6c88871dc5a24d1e97565b52b3bbce77.png
[2789632-9cbb3a7e5df06fd3.gif]: /images/20210615/0b23bcf974864aec957d94b1ed3457e5.png