#include <iostream> #include <iomanip> using namespace std; int main() { int n; cout<<"你考试考了多少分?(0-100)"; cin>>n; if(n>=90&&n<=100) cout<<"优"; if(n>=80&&n<90) cout<<"良"; if(n>=60&&n<80) cout<<"中"; if(n>=0&&n<60) cout<<"差"; return 0; }