📄 function2.c
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LinkList *q=head,*p=newhead,*p1;//删除临时链表和原链表!
if(sno==p->data.sno)
{
newhead=newhead->next;
free(p);
}
else
{
while(p->next!=NULL)
{
if(p->next->data.sno==sno)
break;
else
p=p->next;
}
if(p->next==NULL)
printf("Find not data!!");
else
{
p1=p;
p=p->next;
p1->next=p->next;
if(p==templast)
{
p1->next =NULL;
templast=p1;
}
free(p);
}
}
if(sno==q->data.sno)
{
head=head->next;
free(q);
}
else
{
while(q->next!=NULL)
{
if(q->next->data.sno==sno)
break;
else
q=q->next;
}
if(q->next==NULL)
{
printf("Find not data!!");
}
else
{
p1=q;
q=q->next;
p1->next=q->next;
if(q==last)
{
p1->next =NULL;
last=p1;
}
free(q);
}
}
temphead=newhead;
return newhead;
}
//================================释放所有链表结点===================================/
void DeleteAll(LinkList *h)
{
LinkList *temp = h;
while(temp != NULL)
{
h = h->next;
free(temp);
temp=h;
}
h = NULL;
}
//================================统计前三甲函数===================================//
int Stat_Topthree(int wage)
{
LinkList *p,*q;
double m_tatal,q_tatal;
int flag=3;
int lenght;
lenght=GetLinkLen(head);
if(wage>=1&&wage<=5)
{
Stu temp;
for(p=head;p!=NULL;p=p->next)//按学科成绩进行降序排序!
{
for(q=p->next;q!=NULL;q=q->next)
{
if(p->data.score[wage-1]<q->data.score[wage-1])
{
temp=p->data;
p->data=q->data;
q->data=temp;
}
}
}
if(lenght<=3)
flag=lenght;
else
{
p=head->next->next;
for(q=p->next;q!=NULL;q=q->next)
{
if(p->data.score[wage-1]==q->data.score[wage-1])
{
flag++;
continue;
}
else
break;
}
}
}
if(wage==6)
{
Select_Sort(4);//按总分进行降序排序!
if(lenght<=3)
flag=lenght;
else
{
p=head->next->next;
for(q=p->next;q!=NULL;q=q->next)
{
m_tatal=p->data.score[0] +p->data.score[1] +p->data.score[2] +p->data.score[3] +p->data.score[4];
q_tatal=q->data.score[0] +q->data.score[1] +q->data.score[2] +q->data.score[3] +q->data.score[4];
if(m_tatal==q_tatal)
{
flag++;
continue;
}
else
break;
}
}
}
return flag;
}
//================================将结点插入临时链表函数===================================//
LinkList * InsertNoderes(Stu Data)
{
LinkList *p=NULL;
p=(LinkList *)malloc(sizeof(LinkList));
if(p==NULL)
{
printf("Memory!");
exit(0);
}
p->data =Data;
p->next =NULL;
if(temphead==NULL)
{
temphead=p;
}
else
{
templast->next=p;
}
templast=p;
return temphead;
}
//================================将结点插入原链表函数===================================//
void InsertNode(Stu Data)
{
LinkList *p=NULL;
p=(LinkList *)malloc(sizeof(LinkList));
if(p==NULL)
{
printf(" Memory !");
exit(0);
}
p->data =Data;
p->next =NULL;
if(head==NULL)
{
head=p;
}
else
{
last->next=p;
}
last=p;
}
//================================保存在默认工作目录函数===================================//
void Auto_Save(char file[])
{
FILE *fp;
LinkList *p;
int k=0, len=GetLinkLen(head);
fp=fopen(file,"wb");//打开文件!
if(fp==NULL)//保存失败!
{
Empty(2,21,70,21);
printf("File save Fail!! please input any key to return!!");
getch();
return;
}
for(p=head;p!=NULL;p=p->next)//向文件里面一条一条写入数据!
{
if(fwrite(&p->data ,sizeof(Stu),1,fp)!=1)
{
break;
}
else
k++;
}
fclose(fp);//关闭文件!
if(k!=len)//保存失败!
{
Empty(2,21,70,21);
printf("File save Fail!! please any key to return!!");
getch();
}
else
{
isSave=1;//保存标签!
Empty(2,21,70,21);
printf("from %s file write %d count! please input any key to return!!",file,len);
getch();
}
}
//================================读取默认工作目录函数===================================//
void Auto_Load(char file[])
{
FILE *fp;
int k=0;
Stu tempdata;
DeleteAll(head);//在读取前将所有结点释放!
fp=fopen(file,"rb");//打开文件!
if(fp==NULL)//保存失败!
{
Empty(2,21,70,21);
printf("File open Fail!! please any key to return!!");
getch();
return;
}
while(1)
{
if(fread(&tempdata ,sizeof(Stu),1,fp)!=1)//从文件里一条一条读出数据!
{
break;
}
else
{
InsertNode(tempdata);//向原链表一条一条插入数据!
k++;
}
}
fclose(fp);//关闭文件!
Empty(2,21,70,21);
printf("from %s file read %d count! please any key to return!!",file,k);
getch();
}
//================================另存在不同工作目录文件函数===================================//
int Save_As()
{
char filename[20];
int x,y;
int old_Drive,new_Drive,len,i=0,j=0;
char buffer[_MAX_PATH];// _MAX_PATH为最大路径名长度, buffer为接收路径名的字符数组名!
char str[7]={'*','|',':','?','\"','<','>'};//文件名不能包括的七种字符，其中对于':'在输入合法路径名前三位中的':'是合法的!
char tempfile[_MAX_PATH];
old_Drive=_getdrive();//得到当前工作盘符!
_getdcwd(old_Drive,buffer,_MAX_PATH);//保存当前工作路径 !
GoToXY(2,18);
printf("example as e:/ye/ye.txt e:\\e\\ye.txt");//例子：对于'/'或'\'都是合法的!
GoToXY(2,20);
printf("Please input the path name to save:");
WhereXY(&x,&y);
do
{
int n=0;
Empty(x,y,70,20);
GoToXY(x,y);
GetStr(filename,20,2);
if(filename[0]==27)//按ESC键返回-1 ！
{
return -1;
}
len=strlen(filename);
if(len==0)//文件名为空!
{
Empty(2,21,70,21);
printf("file is null!please input again!!");
continue;
}
for(i=len-1;len>8&&i>len-9;i--)//判断文件名称不能超过8位!
{
if(filename[i]=='\\'||filename[i]=='/')
{
break;
}
}
if(i==len-9)
{
Empty(2,21,70,21);
printf("input error!the file is out of lenght!please input again!!");
continue;
}
Deal_Space(filename);//去除左空格!
//测文件名第一个是不是字母,并且第二个是:,并且第三个是\\或/ ( 如果满足这些条件是合法的路径写法)!
//分别对于有无输入路径时判断文件名是否包含非法字符!
if(isalpha(filename[0]) && filename[1]==':' && (filename[2]=='\\' ||filename[2]=='/'))
{
for(i=0;i<7;i++)
{
if(strchr(filename+3,str[i])!=NULL)
{
n=i+1;
Empty(2,21,70,21);
printf("input error!the file is include '%c' please input again!!",str[i]);
break;
}
}
if(n==i+1)
{
continue;
}
new_Drive=toupper(filename[0])-'A'+1; //得到新路径的盘符编号!
if(_chdrive(new_Drive))//_chdrive(new_Drive)为真说明盘符不存在!
{
Empty(2,21,70,21);
printf("_Drive is not exist! please input again!!");
continue;
}
else
{
_chdir("\\");//改变工作路径!
strcpy(tempfile,filename+3);//否则如果存在则把字符copy到tempfile中!
if(strlen(tempfile)==0)//例如只输入 E:/ 提示出错!
{
Empty(2,21,70,21);
printf("the file is null! please input again!");
continue;
}
}
}
else
{
for(i=0;i<7;i++)
{
if(strchr(filename,str[i])!=NULL)
{
n=i+1;
Empty(2,21,70,21);
printf("input error!the file is include '%c' please input again!!",str[i]);
break;
}
}
if(n==i+1)
continue;
strcpy(tempfile,filename);//如果没有输入路径则直接copy
}
i=0;
do
{
if(tempfile[i]=='\\'||tempfile[i]=='/')// 例如D:/ff/wee/df 如果从ff开始后又碰到\说明要创建一层文件夹!
{
j=i;
i=0;//用于计算每一层文件夹中字符的个数,所以每一层前要置0 !
*(tempfile+j)='\0';
if(_chdir(tempfile)!=0)
{
_mkdir(tempfile);//创建文件夹!
_chdir(tempfile);//改变工作路径到文件夹下!
}
strcpy(tempfile,tempfile+j+1);//再把 例如D:/ff 后的文件名copy到tempfile中
}
i++;
}while(tempfile[i]!='\0');
_chdir(buffer);//改变当前工作路径到输入的文件路径下
if(access(filename,0)==-1)//判断文件名是否存在!
{
Auto_Save(filename);
break;
}
else
{
Empty(2,21,70,21);//若存在则判断是否要覆盖!
printf("the file is exist! Do you want to overwrite the file?[y/n]:");
Exit_Judge();
if(key=='Y'||key=='y')
{
Auto_Save(filename);
break;
}
else if(key=='N'||key=='n')
{
Empty(2,21,70,21);
printf("No overwrite! please input again!!");
continue;
}
}
}while(1);
isSave=1;//保存标签!
return 0;
}
//================================读取不同工作目录的文件函数===================================//
int Load_As()
{
int n=0;
char filename[20];
int x,y;
char str[7]={'*','|',':','?','\"','<','>'};//文件名不能包括的七种字符，其中对于':'在输入合法路径名前三位中的':'是合法的!
int old_Drive,new_Drive,len,i=0,j=0;
char buffer[_MAX_PATH];// _MAX_PATH为最大路径名长度, buffer为接收路径名的字符数组名!
char tempfile[_MAX_PATH];
old_Drive=_getdrive();//得到当前工作盘符!
_getdcwd(old_Drive,buffer,_MAX_PATH);//保存当前工作路径!
GoToXY(2,18);
printf("example as e:/ye/ye.txt e:\\e\\ye.txt");//例子：对于'/'或'\'都是合法的!
GoToXY(2,20);
printf("Please input the path name to load:");
WhereXY(&x,&y);
do
{
Empty(x,y,70,20);
GoToXY(x,y);
GetStr(filename,20,2);
if(filename[0]==27)//按ESC返回-1!
{
return -1;
}
len=strlen(filename);
if(len==0)//文件名为空!
{
Empty(2,21,70,21);
printf("file is null! please input again!!");
continue;
}
for(i=len-1;len>8&&i>len-9;i--)//判断文件名称不能超过8位!
{
if(filename[i]=='\\'||filename[i]=='/')
{
break;
}
}
if(i==len-9)
{
Empty(2,21,70,21);
printf("input error!the file is out of lenght!please input again!!");
continue;
}
Deal_Space(filename);//去除左空格!
//测文件名第一个是不是字母,并且第二个是:,并且第三个是\\或/ ( 如果满足这些条件是合法的路径写法)!
//分别对于有无输入路径时判断文件名是否包含非法字符!
if(isalpha(filename[0]) && filename[1]==':' && (filename[2]=='\\' ||filename[2]=='/'))
{
for(i=0;i<7;i++)
{
if(strchr(filename+3,str[i])!=NULL)
{
n=1;
Empty(2,21,70,21);
printf("input error!the file is include '%c' please input again!!",str[i]);
break;
}
}
if(n==i+1)
continue;
new_Drive=toupper(filename[0])-'A'+1;//得到新路径的盘符编号!
if(_chdrive(new_Drive))//_chdrive(new_Drive)为真说明盘符不存在!
{
Empty(2,21,70,21);
printf("_Drive is not exist! please input again!!");
continue;
}
else
{
_chdir("\\");//改变工作路径!
strcpy(tempfile,filename+3);//否则如果存在则把字符copy到tempfile中!
if(strlen(tempfile)==0)//例如只输入 E:/ 提示出错!
{
Empty(2,21,70,21);
printf("the file is null! please input again!");
continue;
}
}
}
else
{
for(i=0;i<7;i++)
{
if(strchr(filename,str[i])!=NULL)
{
n=1;
Empty(2,21,70,21);
printf("input error!the file is include '%c' please input again!!",str[i]);
break;
}
}
if(n==i+1)
continue;
strcpy(tempfile,filename);//如果没有输入路径则直接copy!
}
_chdir(buffer);
if(access(filename,0)==-1)//判断文件名是否存在!
{
Empty(2,21,70,21);
printf("the file is not exist! please input any key to continue!");
getch();
continue;
}
else
{
Empty(2,21,70,21);//若存在则是否要 Load!
printf("the file is exist! Do you want to continue load the file?[y/n]:");
Exit_Judge();
if(key=='Y'||key=='y')
{
Auto_Load(filename);
break;
}
else if(key=='N'||key=='n')
continue;
}
}while(1);
return 0;
}
//================================判断函数===================================//
void Exit_Judge()
{
do{
key=getch();
if(key=='Y'||key=='y'||key=='N'||key=='n')
{
break;
}
else
{
Empty(2,21,60,21);
printf("you must input Y[y] or N[n]:");
continue;
}
}while(1);
}
//================================自动生成学号===================================//
int AutomaticSno()
{
int i;
LinkList *q;
for(i=1;i<=100;i++)
{
q=head;
while(q!=NULL)
{
if(q->data.sno==i)
break;
q=q->next;
}
if(q==NULL)
break;
}
return i;
}
//================================修改函数===================================//
void Modify_Function()//修改查询到的一条学生记录！
{
LinkList *p=temphead,*q=head;
char m[6],ch;
if(p->next!=NULL)
{
Empty(2,20,70,21);
printf("please input a sno you want to modify:");
Sno_Judge(m);
while(p!=NULL)
{
if(p->data .sno ==atoi(m))
{
break;
}
p=p->next;
}
if(p==NULL)
{
Empty(2,21,70,21);
printf("not find the sno !! please input any key to return!");
getch();
return;
}
while(q!=NULL)
{
if(q->data .sno==atoi(m))
break;
q=q->next;
}
}
GoToXY(34,3);
Empty(32,3,44,3);
printf("Modify Menu");
Empty(2,17,77,18);
printf("[0]return;[1]name;[2]age;[3]chin;[4]engl;[5]math;[6]phys; [7]chemi");
do
{
Empty(60,5,75,5);
Empty(5,6,75,15);
printf("%03d %-15s %4d %5.1f% 5.1f %5.1f %5.1f %6.1f\n",p->data.sno ,p->data.name ,p->data.age , p->data.score [0] ,p->data.score [1] ,p->data.score [2] ,p->data.score [3] ,p->data.score [4]);
ch=Personalized_Tips(26,16,7);
switch(ch)//菜单选择!
{
case '1':
Empty(2,20,70,20);
printf("please input a new name you want to modify:");
Name_Judge(p->data.name);
q->data =p->data ;
Empty(2,21,70,21);
printf("modify success!please input any key to continue!");
getch();
Empty(2,20,70,21);
break;
case '2':
Empty(2,20,70,20);
printf("please input a new age you want to modify:");
p->data.age=Age_Judge(m);
q->data =p->data ;
Empty(2,21,70,21);
printf("modify success!please input any key to continue!");
getch();
Empty(2,20,70,21);
break;
case '3':
Empty(2,20,70,20);
printf("please input a new chin you want to modify:");
p->data.score[0]=Score_Judge(m,20);
q->data =p->data ;
Empty(2,21,70,21);
printf("modify success!please input any key to continue!");
getch();
Empty(2,20,70,21);
break;
case '4':
Empty(2,20,70,20);
printf("please input a new engl you want to modify:");
p->data.score[1]=Score_Judge(m,20);
q->data =p->data ;
Empty(2,21,70,21);
printf("modify success!please input any key to continue!");
getch();
Empty(2,20,70,21);
break;
case '5':
Empty(2,20,70,20);
printf("please input a new math you want to modify:");
p->data.score[2]=Score_Judge(m,20);
q->data =p->data ;
Empty(2,21,70,21);
printf("modify success!please input any key to continue!");
getch();
Empty(2,20,70,21);
break;
case '6':
Empty(2,20,70,20);
printf("please input a new phys you want to modify:");
p->data.score[3]=Score_Judge(m,20);
q->data =p->data ;
Empty(2,21,70,21);
printf("modify success!please input any key to continue!");
getch();
Empty(2,20,70,21);
break;
case '7':
Empty(2,20,70,20);
printf("please input a new chemi you want to modify:");
p->data.score[4]=Score_Judge(m,20);
q->data =p->data ;
Empty(2,21,70,21);
printf("modify success!please input any key to continue!");
getch();
Empty(2,20,70,21);
break;
case '0':
return;
}
}while(1);
}
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