学生个人消费管理系统

# include
# include
# include
# define LEN sizeof(struct score node)
# define DEBUG
# include
struct score node
{ int number；/*学生ID */
char namep1 =压头；
P0 = stu；
for(I = 1；inumber > P1-> number)
{
k = max-> number；
max-> number = P1-> number；
P1-> number = k；
/*交换前后节点的学号值，使学号最大的一个移到后面节点*/
strcpy(t，max-> name)；
strcpy(max->name，P1-> name)；
strcpy(p1->name，t)；
/*交换前后节点中的名称匹配学号*/
/*交换前后节点中的消费情况匹配学号*/
}
max = head；p1 =压头；/*将max，p重新指向链表的头*/
} end2:
printf("现在的学生人数是:%d！\n”，n)；
return(头)；；/* name */
浮动肖飞；/* consume */
struct score node * next；
}；
typedef结构scorenode得分；
int n，k；/*n，k是一个全局变量，可以被这个程序中的所有函数使用*/
/* = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
score * P1，*p2，*p3，* max
int i，j；
float fen；
char t[10]；
n = 0；
P1 = p2 = P3 =(score *)malloc(LEN)；head = p3/*开辟新单元*/
printf("请输入学生信息，输入0退出！\ n ")；
repeat1: printf("请输入学号(学号应大于0):")；/*输入学号，学号应大于0 */
scanf ("%d "，& P1-> number)；
while(P1-> number number)；}
/*当输入的学号为字符或小于0时，程序给出错误，提示您重新输入学号*/
if(P1-> number = = 0)
goto end；/*当输入的学号为0时，转到最后，完成创建链表*/
else
{
P3 = head；
if(n > 0)
{ for(I = 0；inumber！=p3->数字)
p3=p3->下一个；
else
{printf("学号重复，请重新输入！\ n ")；
goto repeat 1；
/*当输入的学号已经存在，程序报错时，回到前面重新输入*/
}
}
}
printf("请输入学名:")；
scanf("%s "，& P1-> name)；/*输入学生姓名*/
printf("请输入消费:")；/*输入消费情况；

head = NULL
while(p1->number！= 0)
{
n = n+1；
if(n = = 1)
head = P1；
else
p2-> next = P1；
p2 = P1；
P1 =(score *)malloc(LEN)；
printf("请输入学生信息，输入0退出！\ n ")；
repeat2:printf("请输入学号(学号应大于0):")；
scanf("%d "，& P1-> number)；/*输入学号，应大于0 */
while (P1->号数)；}
/*当输入的学号为字符或小于0时，程序给出错误，提示您重新输入学号*/
if(P1-> number = = 0)
goto end；/*当输入的学号为0时，转到最后，完成创建链表*/
else
{
P3 = head；
if(n > 0)
{ for(I = 0；inumber！=p3->数字)
p3=p3->下一个；
else
{printf("学号重复，请重新输入！\ n ")；
goto repeat 2；
/*当输入的学号已经存在，程序报错时，回到前面重新输入*/
}
}
}
printf("请输入学名:")；
scanf("%s "，& P1-> name)；/*输入学生姓名*/
printf("请输入消费:")；
scanf("%f "，&p1->肖飞)；/*输入消费情况；
}

end:P1 =头；
P3 = P1；
for(I = 1；inumber > P1-> number)
{
k = max-> number；
max-> number = P1-> number；
P1-> number = k；
/*交换前后节点的学号值，使学号最大的一个移到后面节点*/
strcpy(t，max-> name)；
strcpy(max->name，P1-> name)；
strcpy(p1->name，t)；
/*交换前后节点中的名称匹配学号*/
/*交换前后节点中的消费情况匹配学号*/
}

}
max = head；p1 =压头；/*将max，p重新指向链表的头*/
}
p2-> next = NULL；/*链表结尾*/
printf("输入的学生人数是:%d！\n”，n)；
return(头)；

}
/* = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = */
/* = = = = = = = = = = =
int m = 0；
char filepn[10]；
FILE * FP；
printf("请输入文件路径和名称:")；
scanf("%s "，filepn)；/*输入文件路径和名称*/
if ((FP = fopen (filepn，" r+")= = null)
{
printf("无法打开文件！\ n ")；
返回0；
}
{
P1 =(score *)malloc(LEN)；/*开辟一个新单位*/
fscanf (FP，" %d% s% f% f% f "，&P1->数，->名，&P1->宇文，&P1->于颖，&P1->蜀学)；
printf(" | % d \ t | % s \ t | % . 1f \ t | % . 1f \ t | % . 1f \ t | \ n "，p1->number，p1->name，p1->虞雯，p1->于颖，p1->舒雪)；
/*文件读取和显示*/
head = NULL；
do
{
n = n+1；
if(n = = 1)head = P1；
else p2-> next = P1；
p2 = P1；
P1 =(score *)malloc(LEN)；/*开辟一个新单位*/
fscanf (FP，" %d% s% f% f \ n "，&P1->人数，->姓名，&P1->宇文，&P1->于颖，&P1->蜀学。
printf(" | % d \ t | % s \ t | % . 1f \ t | % . 1f \ t | % . 1f \ t | \ n "，p1->number，p1->name，p1->虞雯，p1->于颖，p1->舒雪)；
/*文件读取和显示*/
}while(！feof(FP))；
p2-> next = P1；
P1-> next = NULL；
n = n+1；
} printf("-\ n ")；/* form offline */
f close(FP)；/*结束阅读，关闭文件*/
回车(头)；
}

/* = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = */
/* = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = */
Score * add2311(Score * head，Score *stu)
/*函数add 2311，函数:添加学生数据，将所有学生数据按其学号进行排序*/
{
Score * P0，* P1，*
int i，j；
float fen；
char t[10]；
P3 = stu =(score *)malloc(LEN)；/*打开一个新单元*/
printf(" \ n输入要添加的学生信息！");
repeat4: printf("请输入学号(学号应大于0):")；
scanf("%d "，& stu-> number)；
/*输入学号，应大于0 */
while(stu-> number number)；}/*输入不正确，重新输入学号*/
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *，当输入的学号为0时，转到最后完成追加*/
else
{
P3 = head；
if(n > 0)
{ for(I = 0；inumber！=p3->数字)
p3=p3->下一个；
else
{printf("学号重复，请重新输入！\ n ")；
goto repeat 4；
/*当输入的学号已经存在并且程序给出错误时，返回前面重新输入*/
}
}

}
/* * * * * * * * * * * * * * * * * * * * * * */
printf("输入学生姓名:")；
scanf("%s "，stu-> name)；/*输入学生姓名*/
printf("请输入消费:")；
scanf("%f "，&stu->肖飞)；/*输入消费情况，分值应为0-100 */
P1 =头；
P0 = stu；
if(head = = NULL)
{ head = P0；P0-> next = NULL；}/*当原链表为空时，数据将从第一个节点开始存储*/
else/*原链表不是空* {
if(P1-> next = = null)/*查找原
P0-> next = NULL；/*将其与新打开的单元连接*/
}
else
{
while(P1->下一个！=NULL)/*还没找到结尾，继续找*/
{
p2 = P1；P1 = P1-> next；
}
P1-> next = P0；
P0-> next = NULL；
}

}
n = n+1；

[10]

}
/* = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =/*/
/* = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =/
score * search 2311(score * head)
/* function search 2311，功能:查询学生消费*/
{ int number；
score *p1，* p2
printf("输入要查询的学生身份证号，")；
scanf("%d "，& number)；

而(号！= 0)
{
if(head = = null)
{ printf(" \ n没有学生信息！\ n ")；返回(头)；}

printf("-\ n ")；
printf("|学号\t|姓名\t|消费\ t \ n ")；
printf("-\ n ")；/*打印表格字段*/
P1 = head；
while(数字！=p1->数字&&p1->下一个！=空)

{ p2 = p1P1 = P1-> next；}
if(number = = p1->number)
{ printf(" | % d \ t | % s \ t | % . 1f \ t | % . 1f \ t | % . 1f \ t | \ n "，p1-> number，p1->name，p1->虞雯，p1->于颖，P1->舒雪)；
printf("-\ n ")；}/*打印表单域*/
else
printf("%d该学生不存在！\n "，数字)；
printf("输入要查询的学生身份证号，")；
scanf("%d "，& number)；
}
printf("已经退出！\ n ")；
return(头)；}

/* = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =/
/* = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =/
score * Del2311(score * head)/*函数del 2311，函数:删除学生数据*/
{
score *p1，* p2
int数；
printf("输入要删除的学生证号(输入0时退出):")；
scanf("%d "，& number)；
getchar()；
while(数字！=0)/*学号为0时退出*/
{
if(head = = null)
{
printf(" \ n没有学生信息！\ n ")；
return(头)；
}

p1 =压头；
while(数字！=p1->数字&&p1->下一个！=NULL)
/*p1不指向你要找的第一个节点，后面还有节点*/
{
P2 = P1；P1 = P1-> next；
} /*p1向后移动一个节点*/[br/]if(number = = P1-> number)
/* Found */
if(P1 = = head)
head。
/*如果p1指向第一个节点，则将两个节点的地址给head */
else
p2-> next = P1-> next；
/*否则，将下一个节点地址赋给上一个节点地址*/
printf ("delete: %d\n "，number)；n = n-1；
}
else
printf(" % d该学生不存在！\n "，数字)；
/*找不到节点*/

printf("输入要删除的学生身份证号:")；
scanf("%d "，& number)；
getchar()；
}
# ifdefdebug
printf("已经退出！\ n ")；
#endif
printf("现在的学生人数是:%d！\n”，n)；
return(头)；
}

/* = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = void print2311(score * head)
/*函数print 2311，功能:显示学生成绩*/
{
score * p；
if(head = = null)
{ printf(" \ n没有学生信息！\ n ")；}
else
{printf("%d\n "，n)；
printf("-\ n ")；
printf("|学号\t|姓名\t|消费\ t | \ n ")；
printf("-\ n ")；/*打印表单域*/
p = head；
do
{ printf(" | % d \ t | % s \ t | % . 1f \ t | % . 1f \ t | % . 1f \ t | \ n "，p->数字，p->姓名，p->虞雯，p->于颖，p->书学)；
printf("-\ n ")；/*打印表单域*/
p = p-> next；}while (p！= NULL)；/*打印完成*/
}
}

Save2311(score *p1)
/*函数Save2311，函数:保存学生数据*/
{
FILE * FP；
char filepnwhile(1)
{ k = menu 2311(k)；
switch(k)/*使用switch语句实现函数选择*/
{ case 1:head = creat 2311()；打破；/*调用创建链表的函数*/
case 2:head = load 2311(head)；打破；/*从文件中调用record函数*/
case 3:head = search 2311(head)；打破；/*调用分数查询函数*/
case 4:head = del 2311(head)；打破；/*调用删除学生数据函数*/
case 5:head = add 2311(head，stu)；打破；/*调用追加学生数据的函数*/
案例6:print 2311(head)；打破；/*调用显示学生数据的函数*/
case7:统计2311(head)；打破；/*调用统计函数*/
案例8:save 2311(head)；打破；/*调用保存函数*/
案例九:taxis2311(头)；打破；/*调用排序函数*/
case 0:exit(0)；/*退出系统，返回主界面*/
默认:printf("输入错误，请重试！\ n ")；}
}
}
；/*保存用于存储文件的路径和文件名*/
printf("请输入文件路径和文件名:")；
scanf("%s "，filepn)；
if ((FP = fopen (filepn，" w+")= = null)
{
printf("无法打开文件！\ n ")；
返回0；
}

Main() /* main function，function:通过调用CREAT、SEARCH、DEL、ADD、PRINT、STSTICS、SAVE、TAXIS等函数，学生消费查询系统函数*/
{score *head=0，* stu = 0；

[20]