[单选题]

如下程序的输出结果是includevoid fun(int & X,inty){intt=x;x=y;y=t;}int main(){in

如下程序的输出结果是 #include<iostream> void fun(int & X,inty){intt=x;x=y;y=t;} int main( ){ int a[2]={23,42}; fun(a[1],a[0]); std::cout<<a[0]<<","<<a[1]<<std::endl; return 0; }

A.42,42

B.23,23

C.23,42

D.42,23

参考答案与解析:

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如下程序的输出结果是#includevoid fun(int & X,inty)