嵌套的switch语句(nested switch statements)
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小牛编辑
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2023-12-01
可以将开关作为外部开关的语句序列的一部分。 即使内部和外部交换机的大小写常量包含公共值,也不会产生冲突。
语法 (Syntax)
nested switch语句的语法如下 -
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 */
}
例子 (Example)
using System;
namespace DecisionMaking {
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();
}
}
}
编译并执行上述代码时,会产生以下结果 -
This is part of outer switch
This is part of inner switch
Exact value of a is : 100
Exact value of b is : 200