C++的写法

分号和逗号使用了一个char类型的字符串来输入。

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

int main() {
    long int number;
    float a, b, c;
    char ch;
    cin >> number >> ch >> a >> ch  >> b >> ch  >> c;
    cout << fixed;
    cout << "The each subject score of No. " <<  number << " is " << setprecision(2) << a << ", " << b << ", " << c << ".";
    return 0;
}

C的写法

C的写法要简洁很多。对于引号和逗号的处理不需要额外定义。

#include <cstdio>
using namespace std;

int main() {
    long int number;
    float a, b, c;
    scanf("%ld;%f,%f,%f",&number,&a,&b,&c);
    printf("The each subject score of No. %ld is %.2f, %.2f, %.2f.", number, a, b, c); 
    return 0;
}