[单选题]

下面程序的运行结果为()。includevoid main(){char a=‘3’;switch(A) {case’3’:cout<

下面程序的运行结果为( )。 #include<iostream.h> void main() { char a=‘3’; switch(A) { case’3’:cout<<“3”; case’2’:cout<<“2”;break; default:cout<<“1”; } }

A.3

B.321

C.31

D.32

参考答案与解析:

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