笔试3   25

#include<iostream>using namespace std;int c;class A{private:int a;static int b;public:A(){a=0;c=0;}void seta(){a++;}void setb(){b++;}void setc(){c++;}void display(){cout<<a<<""<<b<<""<<c;}} ;int A::b=0;int main(){A a1,a2;a1.seta();a1.setb();a1.setc();a2.seta();a2.setb();a2.setc();a2.display();}