程序代码：

#include<stdio.h>
int main()
{ 
    struct Studens
    {
        char name[60];
        char gender[5];
        int studen_number;
        float grade;
    }studen1,studen2;
    puts("录入first学生信息：");
    puts("");
    printf("学生名字:"); fgets(studen1.name, 60, stdin);
    puts(" ");
    printf("学生性别:"); fgets(studen1.gender, 5, stdin);
    puts(" ");
    printf("学号："); scanf_s("%d", &studen1.studen_number);
    puts(" ");
    printf("输入学生成绩："); scanf_s("%f", &studen1.grade); puts("");
    puts("录入second学生信息：");
    puts("");
    printf("学生名字:"); fgets(studen2.name, 60, stdin);
    puts(" ");
    printf("学生性别:"); fgets(studen2.gender, 5, stdin);
    puts(" ");
    printf("学号："); scanf_s("%d", &studen2.studen_number);
    puts(" ");
    printf("输入学生成绩："); scanf_s("%f", &studen2.grade);
    printf("是否比较两个学生的成绩：");
    printf("是按1\t否按2\n");
    int a;
    scanf_s("%d", &a);
    switch (a)
    {
    case '1':
        if (studen1.grade > studen2.grade)
        {
            printf("名字：%s\n性别：%s\n学号：%d\n成绩:%.2f\n", studen1.name, studen1.gender, studen1.studen_number, studen1.grade);

        }
        if(studen1.grade < studen2.grade)
        {
            printf("名字：%s\n性别：%s\n学号：%d\n成绩:%.2f\n", studen2.name, studen2.gender, studen2.studen_number, studen2.grade);

        }break;
        
    
    default:printf("滚吧"); break;
}
    return 0;
}

[此贴子已经被作者于2019-9-5 13:53编辑过]