成绩查询

Posted 2021-02-01 mwq1024

　　

题目描述

从键盘上输入n个学生的信息:学号,姓名, 数学, 英语, 语文的成绩。再从键盘上输入一个学号, 用顺序查找的方法在链表中查找该学生的信息。若找到，输出该学生的信息，没有找到，输出No such person

输入

输入学生的信息:学号,姓名, 数学, 英语, 语文的成绩, 输入学号为0时终止输入;

再输入学号进行查询.

输出

若找到，输出该学生的信息,成绩保留一位小数，没有找到，输出No such person

样例输入

20130610 Guojin 90.5 89.5 70
20140612 Huangrong 99.5 100 90.5
20150548 HuangYaoshi 89 78 56
0 0 0 0 0
20140612

样例输出

20140612 Huangrong 99.5 100.0 90.5

 1 #include <stdio.h>
 2 #include <stdio.h>
 3 #include <stdlib.h>
 4 #include <string.h>
 5 //创建STUDENT类型变量 包括学号、姓名、数学, 英语, 语文的成绩
 6 typedef struct student {
 7     char number[20];
 8     char name[50];
 9     float  math;
10     float english;
11     float chinese;
12     struct  student *pNext;
13 }STUDENT;
14 //创建链表
15 int iCount;
16 STUDENT *Create() {
17     STUDENT *pHead=NULL, *pEnd, *pNew ;
18 
19     pNew = pEnd = (STUDENT*)malloc(sizeof(STUDENT));
20     scanf("%s%s%f%f%f", pNew->number, pNew->name, &pNew->math, &pNew->english, &pNew->chinese);
21     while (strcmp(pNew->number,"0")!=0)
22     {
23         iCount++;
24         if(iCount==1)
25         {
26             pNew->pNext = pHead;
27             pEnd = pNew;
28             pHead = pNew;
29         }
30         else
31         {
32             pNew->pNext = NULL;
33             pEnd->pNext = pNew;
34             pEnd = pNew;
35         }
36         pNew =(STUDENT*)malloc(sizeof(STUDENT));
37         scanf("%s%s%f%f%f", pNew->number, pNew->name, &pNew->math, &pNew->english, &pNew->chinese);
38 
39     }
40     free(pNew);
41     return pHead;
42 }
43 int main() {
44     int flag = 1;
45     char number[20]; STUDENT *p;
46     p = Create();
47     scanf("%s", number);
48     while (p->pNext != NULL)
49     {
50         p = p->pNext;
51         if (strcmp(p->number, number) == 0)
52         {
53         printf("%s %s %0.1f %0.1f %0.1f", p->number, p->name, p->math, p->english, p->chinese); flag =0;
54         }
55 
56     }
57     if (flag == 1) printf("No such person");
58     free(p);
59     return 0;
60 }