#include int main(){float a1,a2;int flag=1;char faze;do{ cout<<"input(eg:x*y):"< cin>>a1>>faze>>a2;if(faze=='+')cout<if(faze=='-')cout<if(faze=='*')cout<if(faze=='/')cout<cout<<"是否继续计算1/0 : ";cin>>flag;}while(flag==1);return 0;}
