在C#中,可以在另一个switch语句中使用一个switch语句。可能有一个开关作为外部开关的语句序列的一部分。即使内部和外部开关的大小写常量包含公共值,也不会发生冲突。
以下是语法。
switch(ch1) { case 'A': Console.WriteLine("This A is part of outer switch" ); switch(ch2) { case 'A': Console.WriteLine("This A is part of inner switch" ); break; case 'B': /* inner B case code */ } break; case 'B': /* outer B case code */ }
以下是C#中的嵌套switch语句的示例。
switch (a) { case 100: Console.WriteLine("This is part of outer switch "); switch (b) { case 200: Console.WriteLine("This is part of inner switch "); break; } break; }
让我们看完整的例子。
using System; namespace Demo { class Program { static void Main(string[] args) { int a = 100; int b = 200; switch (a) { case 100: Console.WriteLine("This is part of outer switch "); switch (b) { case 200: Console.WriteLine("This is part of inner switch "); break; } break; } Console.WriteLine("Exact value of a is : {0}", a); Console.WriteLine("Exact value of b is : {0}", b); Console.ReadLine(); } } }
输出结果
This is part of outer switch This is part of inner switch Exact value of a is : 100 Exact value of b is : 200