题解 | 学生基本信息输入输出

#include <stdio.h>
#include <math.h>
//新学了结构体，想用结构体做一下，然后发现做出来四舍五入的结果不对，又查了下需要用到round函数对其进行四舍五入处理。
struct stu
{
    char stunum[30];
    double scoreC;
    double scoreM;
    double scoreE;
};
void print(struct stu* p)
{
    double C=round(p->scoreC*100)/100.0;
    double M=round(p->scoreM*100)/100.0;
    double E=round(p->scoreE*100)/100.0;   
    printf("The each subject score of No. %s is %.2f, %.2f, %.2f.",p->stunum,C,M,E);
}
int main() {
    struct stu s;
    scanf("%[^;]; %lf,%lf,%lf",&s.stunum,&s.scoreC,&s.scoreM,&s.scoreE);
    print(&s);
    return 0;
}