可能有一个 switch 作为外部switch的语句序列的一部分。即使内部和外部switch的大小写常量包含公共值,也不会发生冲突。
嵌套switch语句的语法如下-
switch(ch1) case 'A' fprintf('This A is part of outer switch'); switch(ch2) case 'A' fprintf('This A is part of inner switch' ); case 'B' fprintf('This B is part of inner switch' ); end case 'B' fprintf('This B is part of outer switch' ); end
创建一个脚本文件并在其中键入以下代码-
a = 100; b = 200; switch(a) case 100 fprintf('This is part of outer switch %d\n', a ); switch(b) case 200 fprintf('This is part of inner switch %d\n', a ); end end fprintf('Exact value of a is : %d\n', a ); fprintf('Exact value of b is : %d\n', b );运行文件时,它显示-
This is part of outer switch 100 This is part of inner switch 100 Exact value of a is : 100 Exact value of b is : 200