学生成绩管理系统链表版C代码包含所有功能适合初学者借鉴.docx

学生成绩管理系统链表版C代码包含所有功能适合初学者借鉴.docx

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#include"stdio.h"

#include"time.h"

#include"string.h"

#include"stdlib.h"

#include"conio.h"

#defineNULL0

typedefstructLstu{

intcla,ID;

longnum;

charname[20];

charsex[20];

floatchinese,math,english;

floatsum,ave;

Lstu*next;

}Lstu;

Lstu*head;

voidCreate（intn）{//创建链表

Lstu*p,*s;

inti;

for（i=0;i

if（i==0）{

p=（Lstu*）malloc（sizeof（Lstu））;

printf（"请输入第%d个人的信息\n",i+1）;

printf（"请输入班级:

"）;scanf（"%d",&p->cla）;

printf（"请输入学号:

"）;scanf（"%ld",&p->num）;

printf（"请输入姓名:

"）;scanf（"%s",p->name）;

printf（"请输入性别:

"）;scanf（"%s",p->sex）;

printf（"请输入语文成绩:

"）;scanf（"%f",&p->chinese）;

printf（"请输入数学成绩:

"）;scanf（"%f",&p->math）;

printf（"请输入英语成绩:

"）;scanf（"%f",&p->english）;

p->sum=p->chinese+p->math+p->english;

p->ave=p->sum/3;

head=p;

if（n==1）{

p->next=NULL;}}

else{

s=（Lstu*）malloc（sizeof（Lstu））;

printf（"请输入第%d个人的信息\n",i+1）;

printf（"请输入班级:

"）;scanf（"%d",&s->cla）;

printf（"请输入学号:

"）;scanf（"%ld",&s->num）;

printf（"请输入姓名:

"）;scanf（"%s",s->name）;

printf（"请输入性别:

"）;scanf（"%s",s->sex）;

printf（"请输入语文成绩:

"）;scanf（"%f",&s->chinese）;

printf（"请输入数学成绩:

"）;scanf（"%f",&s->math）;

printf（"请输入英语成绩:

"）;scanf（"%f",&s->english）;

s->sum=s->chinese+s->math+s->english;

s->ave=s->sum/3;

p->next=s; p=s;

s->next=NULL;}

}

}

voidList（）{//输出链表内容

Lstu*p;

inti=0;

p=head;

if（p==NULL）{

printf（"Sorry,It'saEmptyList\n"）;}

else{

printf（"\n\n\t------------------------------------------------------------------\n"）;

printf（"\t%-5s%-5s%-10s%-8s%-7s%-10s%-10s%-10s\n","序号","班级","学号","姓名","性别","语文成绩","数学成绩","英语成绩"）;

printf（"\t------------------------------------------------------------------\n"）;

while（p）{i++;p->ID=i;

printf（"\t%-4d%-5d%-7d%-8s%-7s%-10.2f%-10.2f%-10.2f\n",p->ID,p->cla,p->num,p->name,p->sex,p->chinese,p->math,p->english）;

printf（"\t------------------------------------------------------------------\n"）;

p=p->next;

}

}

}

voidlist（）{//输出链表所有内容

Lstu*p;

inti=0;

p=head;

if（p==NULL）{

printf（"Sorry,It'saEmptyList\n"）;}

else{

printf（"\n----------------------------------------------------------------------------------\n"）;

printf（"%-5s%-5s%-7s%-8s%-7s%-10s%-10s%-10s%-8s%-8s\n","序号","班级","学号","姓名","性别","语文成绩","数学成绩",

"英语成绩","总分","平均分"）;

printf（"----------------------------------------------------------------------------------\n"）;

while（p）{i++;p->ID=i;

printf（"%-4d%-6d%-12d%-8s%-7s%-10.2f%-10.2f%-10.2f%-8.2f%-8.2f\n",p->ID,p->cla,p->num,p->name,p->sex,

p->chinese,p->math,p->english,p->sum,p->ave）;

printf（"----------------------------------------------------------------------------------\n"）;

p=p->next;

}

}

}

voidsave（）{//文件保存

FILE*fp;

Lstu*p;

p=head;

if（（fp=fopen（"初始值二进制.txt","wb"））==NULL）

{

printf（"Cannotopenthefile"）;

exit（0）;

}

while（p）{

fwrite（p,sizeof（Lstu）,1,fp）;

p=p->next;}

fclose（fp）;

}

voidsave1（）{//文件保存

FILE*fp;

Lstu*p;

p=head;

if（（fp=fopen（"初始值二进制备用.txt","wb"））==NULL）

{

printf（"Cannotopenthefile"）;

exit（0）;

}

while（p）{

fwrite（p,sizeof（Lstu）,1,fp）;

p=p->next;}

fclose（fp）;

}

voidread（）{//文件读取

FILE*fp;

Lstu*p,*p1;

if（（fp=fopen（"初始值二进制.txt","rb"））==NULL）

{

printf（"Cannotopenthefile\n"）;

exit（0）;

}head=（Lstu*）malloc（sizeof（Lstu））;

p1=head;

while（!

feof（fp））{

p=（Lstu*）malloc（sizeof（Lstu））;

if（fread（p,sizeof（Lstu）,1,fp）==1）

{

p1->next=p;

p1=p1->next;

}

}head=head->next;fclose（fp）;

}

voidread1（）{//文件读取

FILE*fp;

Lstu*p,*p1;

if（（fp=fopen（"初始值二进制备用.txt","rb"））==NULL）

{

printf（"Cannotopenthefile\n"）;

exit（0）;

}head=（Lstu*）malloc（sizeof（Lstu））;

p1=head;

while（!

feof（fp））{

p=（Lstu*）malloc（sizeof（Lstu））;

if（fread（p,sizeof（Lstu）,1,fp）==1）

{

p1->next=p;

p1=p1->next;

}

}head=head->next;fclose（fp）;

}

voidSAVE（）{//保存到可浏览文件

FILE*fp;

Lstu*p;inti=0;

p=head;

if（（fp=fopen（"初始值可浏览文件.txt","w+"））==NULL）

{

printf（"Cannotopenthefile"）;

exit（0）;

}

fprintf（fp,"\n\n\t------------------------------------------------------------------\n"）;

fprintf（fp,"\t%-5s%-5s%-10s%-8s%-7s%-10s%-10s%-10s\n","序号","班级","学号","姓名","性别","语文成绩","数学成绩","英语成绩"）;

fprintf（fp,"\t------------------------------------------------------------------\n\n"）;

while（p）{

i++;p->ID=i;

fprintf（fp,"\t%-4d%-5d%-7d%-8s%-7s%-10.2f%-10.2f%-10.2f\n",p->ID,p->cla,p->num,p->name,

p->sex,p->chinese,p->math,p->english）;

fprintf（fp,"\t---------------------------------