第十周项目三 血型统计

#include<iostream>using namespace std;int main(){char m;int a=0,b=0,c=0,d=0;cout<<"请输入血型序列"<<endl;do{cin>>m;switch(m){case ('A'):a++;break;case ('B'):b++;break;case ('C'):c++;break;case ('O'):d++;break;}}while(m!='X');cout<<"A型:"<<a<<" "<<"B型:"<<b<<" "<<"AB型:"<<c<<" "<<"O型:"<<d<<endl;return 0;}