昨天晚上能成功运行的程序，今天不能运行了，麻烦大家帮忙看一下（参考了论坛里的学生成绩管理系统）
#include <stdio.h>#include <string.h>
struct student
{ int num[11];
char name[20];
char sex[3];
int English[10];
int Math[10];
int Physics[10];
int C[10];
} stu[10];
int enter (struct student stu []);
void menu2();
void menu();
void scan();
void print();
void scanname();
void scanno();
void change();
void menu3();
void change();
void shunxu();
void delete();
void save(struct student stu[]);
void load(struct student stu[]);
int j=0;
int main ()
{ char a;
menu ();
a=getchar();
switch(a)
{ case '1' :system("cls"); enter(stu);break;
case '2' :system("cls");scan(stu);break;
case '3' :system("cls");delete(stu);break;
case '4' :system("cls");save(stu);break;
case '5' :system("cls");shunxu(stu);break;
case '6' :system("cls");change(stu);break;
case '7' :system("cls"); load(stu);break;
case '8' :system("cls"); printf("Bye bye!\n");break;
default:
{system("cls");
printf("Input wrong,please choose a new number:\n");}
if(a=='1'||a=='2'||a=='3'||a=='4'||a=='5'||a=='6'||a=='7'||a=='8')
break;
else
main();
} return 0;
}
void menu ()
{ printf("\t\t\t Students’score management\n");
printf("********************************************************************************\n");
printf("Please choose one number:\n");
printf("1.Input the student's information.\n");
printf("2.Inquire student's information.\n");
printf("3.Delete the student's information according to the number.\n");
printf("4.Save the student's information.\n");
printf("5.Rank according to the score.\n");
printf("6.Change the information.\n");
printf("7.Load the student's information.\n");
printf("8.Exit!\n");
printf("********************************************************************************\n");
}
int enter(struct student stu[])
{ int i,x,k;
for(i=j;i<=j;i++)
{ j++;
printf("**********************Input the information*********************\n");
printf("The \t%dth student:\n",j);
printf("Number:\n");
scanf("%d",&stu[i].num);
for(x=1;x<=j;x++)
{if(stu[x].num==stu[i].num)
{printf("This number has been saved ,please input another number!\n");
printf("The %dth student:\n",j);
printf("Number:\n");
scanf("%d",&stu[i].num);
i--;
x--;
break;}
}
printf("Name:\n");
scanf("%s",stu[i].name);
printf("Sex(m/w):\n");
scanf("%s",&stu[i].sex);
printf("English score:\n");
scanf("%d",stu[i].English);
printf("Math score:\n");
scanf("%d",stu[i].Math);
printf("Physics score:\n");
scanf("%d",stu[i].Physics);
printf("C score:\n");
scanf("%d",stu[i].C);
printf("\n");
printf("**************Input A back to main menu or input Enter for logging the next number************\n");
getchar();
if((k=getchar())=='A')
{ system ("cls");
main();
break;}
} return 0;
}
void menu2()
{ printf("*********************Inquire the student's information***********************\n");
printf("Please choose one number from 1 to 3:\n");
printf("1.Display all of the students’ information\n");
printf("2.Inquire the information according to the Number\n");
printf("3.Inquire the information according to the Name\n");
printf("4.Back to the main menu\n");
printf("******************************************************************************\n");
}
void scan()
{ char b;
menu2();
b=getchar();
switch(b)
{ case '1':system("cls");print(stu);break;
case '2':system("cls");scanno(stu);break;
case '3':system("cls");scanname(stu);break;
case '4':system("cls");main();break;
default :system ("cls");
printf("Please choose a new number:\n");
scan();}
}
void print(struct student stu[])
{ int n;
if(j>0)
{ for (n=0;n<j;n++)
{
{printf("Number:%d\n",stu[n].num);
printf("Name:%s\n",stu[n].name);
printf("Sex:%s\n",stu[n].sex);
printf("English score:%d\n",stu[n].English);
printf("Math score:%d\n",stu[n].Math);
printf("Physics score:%d\n",stu[n].Physics);
printf("C score:%d\n",stu[n].C);
printf("*******************Inquire the student's information*****************\n");
system("cls");
}
if(n==(j-1))
{printf("\nThose are all of the students's information above!\n");
system("cls");
scan();}
}
}
else
{ system("cls");
printf("\nThere is no information about this student,please input!\n");
system("cls");
scan();
}
}
void scanno(struct student stu[])
{ int i,a,z=-1;
printf("\nPlease input the number of the student that you want to inquire:\n");
scanf("%d",&a);
for(i=0;i<j;i++)
{if(a==stu[i].num)z=i;}
if(z!=-1)
{printf("Number:%d\n",stu[z].num);
printf("Name:%s\n",stu[z].name);
printf("Sex:%s\n",stu[z].sex);
printf("English score:%d\n",stu[z].English);
printf("Math score:%d\n",stu[z].Math);
printf("Physics score:%d\n",stu[z].Physics);
printf("C score:%d\n",stu[z].C);
printf("**********************Inquire the student's information*********************\n");
system("cls");
scan();}
else
{ printf("There is no information about this student!Please enter any key to return\n");
system("cls");
scan();}
}
void scanname(struct student stu[])
{ char a[20];
int i,n,z=1;
printf("\nInput the name that you want to inquire:\n");
scanf("%s",a);
for(i=0;i<j;i++)
{if(!strcmp(a,stu[i].name))
break;}
n=(!strcmp(a,stu[i].name));
if(n==1)
{printf("Number:%d\n",stu[z].num);
printf("Name:%s\n",stu[z].name);
printf("Sex:%s\n",stu[z].sex);
printf("English score:%d\n",stu[z].English);
printf("Math score:%d\n",stu[z].Math);
printf("Physics score:%d\n",stu[z].Physics);
printf("C score:%d\n",stu[z].C);
printf("**********************Inquire the student's information*********************\n");
system("cls");
scan();}
else
{ system("cls");
printf("\nThere is no information about this student,please input!\n");
system("cls");
scan();}
}
void menu3()
{printf("*******************Inquire the student's information***************************\n");
printf("Please chose one number from 1 to 2:\n");
printf("1.Inquire the information according to the Number\n");
printf("2.Inquire the information according to the Name\n");
printf("3.Back to the main menu\n");
printf("******************************************************************************\n");}
void change(struct student stu[])
{ char b;
menu3();
b=getchar();
switch(b)
{ case '1':system("cls");
{ int k,i,a,z=-1;
printf("\nPlease enter the student's number which you want to chang:\n");
scanf("%d",&a);
for(i=0;i<j;i++)
{if(a==stu[i].num)
z=i;}
if(z!=-1)
{ printf("The information about the student:\n");
printf("Number:%d\n",stu[z].num);
printf("Name:%s\n",stu[z].name);
printf("Sex(m/w):%s\n",stu[z].sex);
printf("English score:%d\n",stu[z].English);
printf("Math score:%d\n",stu[z].Math);
printf("Physics score:%d\n",stu[z].Physics);
printf("C score:%d\n",stu[z].C);
printf("*********************Change the student's information*********************\n");
printf("Please enter the student's information:\n");
printf("Number:\n");
scanf("%d",&stu[z].num);
printf("Name:\n");
scanf("%s",stu[z].name);
printf("Sex:\n");
scanf("%s",stu[z].sex);
printf("English score:\n");
scanf("%d",stu[z].English);
printf("Math score:\n");
scanf("%d",stu[z].Math);
printf("Physics score:\n");
scanf("%d",stu[z].Physics);
printf("C score:\n");
scanf("%d",stu[z].C);
printf("\n");
printf("******Information has been changed! Input A back to main menu,input Enter back to chang menu ******\n");
getchar();
if((k=getchar())=='A')
{ system ("cls");
main();
break;}
}
if(z==-1);
{system("cls");
printf("\nThere is no information about this student,please input!\n");
system("cls");
change(stu);
}
system("cls");
change(stu);
break;}
case '2': system("cls");
{ char a[5];
int i,n,k,z=-1;
printf("\nPlease input the student's name that you want to chang:\n");
scanf("%s",a);
for(i=0;i<j;i++)
{if(!strcmp(a,stu[i].name))
break;
}
n=(!strcmp(a,stu[i].name));
if(n==1)
{ printf("The information about the student:\n");
printf("Number:%d\n",stu[z].num);
printf("Name:%s\n",stu[z].name);
printf("Sex(m/w):%s\n",stu[z].sex);
printf("English score:%d\n",stu[z].English);
printf("Math score:%d\n",stu[z].Math);
printf("Physics score:%d\n",stu[z].Physics);
printf("C score:%d\n",stu[z].C);
printf("**********************Change the student's information********************\n");
printf("Please enter the student's information:\n");
printf("Number:\n");
scanf("%d",&stu[z].num);
printf("Name:\n");
scanf("%s",stu[z].name);
printf("Sex:\n");
scanf("%s",stu[z].sex);
printf("English score:\n");
scanf("%d",stu[z].English);
printf("Math score:\n");
scanf("%d",stu[z].Math);
printf("Physics score:\n");
scanf("%d",stu[z].Physics);
printf("C score:\n");
scanf("%d",stu[z].C);
printf("\n");
printf("****Information has been changed! Input A back to main menu,input Enter back to chang menu ****\n");
getchar();
if((k=getchar())=='A')
{ system ("cls");
main();
break;}
system("cls");
change(stu);
}
else
{ printf("There is no information about this student! Please enter any key to return\n");
system("cls");
change(stu);}
}break;
case '3': system("cls");main();break;
default : system ("cls");
printf("Input wrong,please chose a new number:\n");
change(stu);
}
}
void shunxu(struct student stu[])
{ int i,k,n;
char t[30];
for(i=0;i<j;i++)
for(k=0;k<j-i-1;k++)
{
if(stu[k].num>stu[k+1].num)
{ n=stu[k].num;
stu[k].num=stu[k+1].num;
stu[k+1].num=n;
strcpy (t,stu[k].name);
strcpy (stu[k].name,stu[k+1].name);
strcpy(stu[k+1].name,t);
strcpy(t,stu[k].sex);
strcpy (stu[k].sex,stu[k+1].sex);
strcpy(stu[k+1].sex,t);
strcpy(t,stu[k].English);
strcpy (stu[k].English,stu[k+1].English);
strcpy(stu[k+1].English,t);
strcpy(t,stu[k].Math);
strcpy(stu[k].Math,stu[k+1].Math);
strcpy(stu[k+1].Math,t);
strcpy(t,stu[k].Physics);
strcpy(stu[k].Physics,stu[k+1].Physics);
strcpy(stu[k+1].Physics,t);
strcpy(t,stu[k].C);
strcpy(stu[k].C,stu[k+1].C);
strcpy(stu[k+1].C,t);
}
}
printf("\nThe order has been ranged!\n");
system("cls");
main();
}
void delete( )
{ int i,z=-1,a,t;
char k;
printf("Please input the student's number:\n");
scanf("%d",&a);
for(i=0;i<j;i++)
{if(a==stu[i].num)
z=i;}
if(z!=-1)
{
{ printf("********************! Delete the student's information !******************\n");
printf("Information about the student:\n");
printf("Number:%d\n",stu[z].num);
printf("Name:%s\n",stu[z].name);
printf("Sex(m/w):%s\n",stu[z].sex);
printf("English score:%d\n",stu[z].English);
printf("Math score:%d\n",stu[z].Math);
printf("Physics score:%d\n",stu[z].Physics);
printf("C score:%d\n",stu[z].C);
for(;z<j;z++)
{stu[z].num=stu[z+1].num;
strcpy (stu[z].name,stu[z+1].name);
strcpy (stu[z].sex,stu[z+1].sex);
strcpy (stu[z].English,stu[z+1].English);
strcpy (stu[z].Math,stu[z+1].Math);
strcpy (stu[z].Physics,stu[z+1].Physics);
strcpy (stu[z].C,stu[z+1].C);}
j--;
printf("\n***This information has been deleted,input Enter to ruturn***\n");}
}
else
printf("\nThere is no information about this student!\n");
system("cls");
main ( );
if(z==-1)
{system("cls");
printf("\nThere is no information about this student!\n");
system("cls");
main();}
}
void save(struct student stu[])
{ FILE *fp;
int i;
if((fp=fopen("Students' information.txt","wb"))==NULL)
{ printf("Can't open!\n");
return;}
else
{ fwrite(stu,sizeof(struct student),j,fp);
fclose(fp);
printf("OK,Information has been saved,input any key to return.");
getch();
system("cls");
main();
}
}
void load(struct student stu[])
{ FILE *fp;
int i=0;
if((fp=fopen("Student's information.txt","rb"))==NULL)
{ printf("Can't open!\n");
main();}
else
{ if(fp!=NULL)
while(!feof(fp))
{ fread(stu+i,sizeof(struct student),1,fp);
i++;}
fclose (fp);
i--;
printf("Date load succeed,there is %d information has been loaded,input any key to return!",i);
j = i;
getch();
system("cls");
main();
} return --i;
}
[ 本帖最后由 丁宝青 于 2010-1-4 12:25 编辑 ]
