题解 | 学生基本信息输入输出

#include <iostream>
#include<iomanip>
#include<cmath>
using namespace std;

int main() {
    int i = 0;
    float a,b,c;
    char ch;
    cin >> i;
    cin >> ch;
    cin >> a;
    cin >> ch;
    cin >> b ;
    cin >> ch;
    cin >> c;
    a = round(a*100)/100;
    b = round(b*100)/100;
    c = round(c*100)/100;
    cout << fixed <<setprecision(2);
    cout << "The each subject score of No. " << i << " is " << a << ", " << b <<", " << c << "." << endl; 
}