数组——求和、平均分、最值

 1 求和、平均分、最值
 2 using System;
 3 using System.Collections.Generic;
 4 using System.Text;
 5 
 6 namespace ChenJiTongJi
 7 {
 8     class Program
 9     {
10         static void Main(string[] args)
11         {
12             Console.Write("请输入学生个数：");
13             int n = Convert.ToInt32(Console.ReadLine());
14 
15             Console.Write("请输入总分值：");
16             double zongfenzhi = Convert.ToInt32(Console.ReadLine());
17 
18             double[] chengji = new double[n];
19             for (int i = 0; i < n; i++)
20             {
21                 int a = i + 1;
22                 Console.Write("请输入第" + a + "个成绩：");
23                 chengji[i] = Convert.ToDouble(Console.ReadLine());
24             }
25 
26             //求最好成绩（最大值）
27 
28             double max = 0;
29             for (int j = 0; j < chengji.Length; j++)
30             {
31                 if (chengji[j] > max)
32                 {
33                     max = chengji[j];
34                 }
35             }
36 
37             //求最小成绩（最小值）
38 
39             double min = zongfenzhi;
40             for (int x = 0; x < chengji.Length; x++)
41             {
42                 if (chengji[x] < min)
43                 {
44                     min = chengji[x];
45                 }
46             }
47 
48             //求总分、平均分
49 
50             double zongfen = 0;
51             for (int m = 0; m < chengji.Length; m++)
52             {
53                 zongfen += chengji[m];
54             }
55             double pingjunfen = zongfen / n;
56 
57             Console.WriteLine("最差成绩为" + min);
58             Console.WriteLine("最好成绩为" + max);
59             Console.WriteLine("总分为" + zongfen);
60             Console.WriteLine("平均分为" + pingjunfen);
61 
62             Console.ReadLine();
63         }
64     }
65 }