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  • 结构体练习(C)

    结构体存储学生学号、姓名、总分,动态内存分配增加信息,然后排序

     1 # include <stdio.h>
     2 # include <malloc.h>
     3 //# include <windows.h>
     4 
     5 struct stu
     6 {
     7     char stuno[5]; //学号
     8     char sname[10]; //姓名
     9     int score; //总分
    10 };
    11 
    12 int main(void)
    13 {
    14     int n, i, j;
    15     struct stu *stuinf, temp;
    16     printf("请输入学生个数:");
    17     scanf("%d", &n);
    18     printf("
    ");
    19     stuinf = (struct stu *)malloc(sizeof(struct stu) * n);
    20     //输入
    21     for (i=0; i<n; i++)
    22     {
    23         printf("请输入第%d个学生信息:
    ", i+1);
    24         printf("请输入学号:");
    25         scanf("%s", stuinf[i].stuno);
    26         printf("请输入姓名:");
    27         scanf("%s", stuinf[i].sname);
    28         printf("请输入总分:");
    29         scanf("%d", &stuinf[i].score);
    30         printf("
    ");
    31     }
    32     //排序前输出
    33     printf("----------排序前:----------
    ");
    34     for (i=0; i<n; i++)
    35     {
    36         printf("第%d个学生信息:
    ", i+1);
    37         printf("学号:");
    38         printf("%s
    ", stuinf[i].stuno);
    39         printf("姓名:%s
    ", stuinf[i].sname);
    40         printf("总分:%d
    ", stuinf[i].score);
    41         printf("
    ");        
    42     }
    43     //排序
    44     for (i=0; i<n-1; i++)
    45     {
    46         for (j=0; j<n-1-i; j++)
    47         {
    48             if (stuinf[j].score > stuinf[j+1].score)
    49             {
    50                 temp = stuinf[j];
    51                 stuinf[j] = stuinf[j+1];
    52                 stuinf[j+1] = temp;
    53             }
    54         }
    55     }
    56 
    57 
    58     //排序后输出
    59     printf("----------排序后:----------
    ");
    60     for (i=0; i<n; i++)
    61     {
    62         printf("第%d个学生信息:
    ", i+1);
    63         printf("学号:");
    64         printf("%s
    ", stuinf[i].stuno);
    65         printf("姓名:%s
    ", stuinf[i].sname);
    66         printf("总分:%d
    ", stuinf[i].score);
    67         printf("
    ");        
    68     }
    69     //system("pause");    
    70     
    71     return 0;        
    72 }
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  • 原文地址:https://www.cnblogs.com/uncleyong/p/6870252.html
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