[单选题]

下列程序的运行结果是includeclass A{int a;public:A( ){a=0;}A(int aa) { a=aa; c

下列程序的运行结果是 #include<iostream.h> class A { int a; public: A( ){a=0;} A(int aa) { a=aa; cout<<a++; } }; void main( ) { A x,y(2),z(3); cout<<end1; }

A.0

B.23

C.34

D.25

参考答案与解析:

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