.Net基础篇_学习笔记_第五天_流程控制while循环002

 1 using System;
 2 using System.Collections.Generic;
 3 using System.Linq;
 4 using System.Text;
 5 using System.Threading.Tasks;
 6 
 7 namespace 流程语句02
 8 {
 9     class Program
10     {
11         static void Main(string[] args)
12         {
13            
14             string anwer= "";
15             int i = 1;
16             while (anwer != "yes" && i <= 10)
17             {
18                 Console.WriteLine("你们会了么？yes/no?这已经是讲的第{0}遍了", i);
19                 anwer = Console.ReadLine();
20                 if (anwer == "yes")
21                 {
22                     Console.WriteLine("既然会了，可以放学啦！");
23                     break;
24                 }
25                 i++;
26             }
27             while (i > 10)
28             {
29                 Console.WriteLine("老师都已经讲了第{0}遍了，你们不会也放学吧！",i);
30                 break;
31             }
32             Console.ReadKey();
33 
34         }
35     }
36 }

练习二：

 1 using System;
 2 using System.Collections.Generic;
 3 using System.Linq;
 4 using System.Text;
 5 using System.Threading.Tasks;
 6 
 7 namespace 流程语句02
 8 {
 9     class Program
10     {
11         static void Main(string[] args)
12         {
13             double person = 80000;
14             int year = 2006; 
15             while (person < 200000)
16             {
17                 person *= 1.25;
18                 year++;
19             }
20             Console.WriteLine("在{0}年，人数超过200000人",year);
21             Console.ReadKey();
22 
23         }
24     }
25 }