答案最简单 牛牛 · 发布于 2024-03-04 · 浏览 641 回复 0 include <bits/stdc++.h> using namespace std; int main(){ int s; cin>>s; if(s>=90&&s<=100)cout<<"A"; if(s>=80&&s<90)cout<<"B"; if(s>=70&&s<80)cout<<"C"; if(s>=60&&s<70)cout<<"D"; if(s>=0&&s<60)cout<<"E"; return 0; }