C语言项目--教师信息/学生成绩管理系统

               

这个系统实现两个功能，分别是管理教师的信息和学生的成绩，用户可以选择切换实现相应的功能。话不多说了，现在看下程序的实现截图：

这里给出程序代码下载地址：http://download.csdn.net/detail/dlutbrucezhang/5191828

下面贴出部分代码：

void add_tea(Teacher tea[]) {  int i=0,j,num;  char str[5];  if(numtea!=0)  {   printf("cover the current record?(y/n)\n");   gets(str);   if(str[0]=='Y'||str[0]=='y')    i=0;   else i=numtea;  }  printf("Please input the number of you add the teachers:");  scanf("%d",&num);  if(i==0)   numtea=num;  else numtea+=num;  if(numtea>lens)  {   lens+=10;   tea=(Teacher *)realloc(tea,lens*SIZE);  }  printf("Please input the teacher's info:\n");  for(;iprintf("please input the teacher's NO.:");   gets(tea[i].number);   printf("please input the teacher's name:");   gets(tea[i].name);   printf("please input the teacher's sex(man/woman 0/1):");   gets(tea[i].sex);   if(tea[i].sex[0]=='0') strcpy(tea[i].sex,"man");   else strcpy(tea[i].sex,"woman");   printf("please input the teacher's address:");   gets(tea[i].addr);   printf("the teacher is married(No/Yes 0/1):");   gets(tea[i].married);   if(tea[i].sex[0]=='0') strcpy(tea[i].sex,"No");   else strcpy(tea[i].sex,"Yes");  }  display_tea(tea,0,numtea-1);  getchar(); }void display_tea(Teacher tea[],int n1,int n2) {  int i; char str[2]; if(numtea==0){        printf("There is Nothing!\n");     printf("Do you want to open some file to find the record?(Y/N)\n");     gets(str);     if (str[0]=='Y'||str[0]=='y')     {      openfileTXT(tea);     }     else     {      return;     } } else {  for(i=n1;i<=n2;i++)    printf("number:%s\tname:%s\t\tsex:%s\t\taddr:%s\t\tmarried:%s\t",tea[i].number,tea[i].name,tea[i].sex,tea[i].addr,tea[i].married);  }} void adjust(Teacher tea[]) {  char str[5];  int i=-1,j;  if(numtea==0)  {  printf("there is nothing !!!\n");   return; } while(i<0)  {   i=find_tea(tea);   if(i>=0)   {    printf("Delete it?(y/n)");    gets(str);    if(str[0]=='y'||str[0]=='Y')    {     delete_tea(tea,i);     /*count(stud); */   }    else    {     printf("Adjust it?(y/n)");     gets(str);     if(str[0]=='y'||str[0]=='Y')     {      printf("Please input something you want:\n");      printf("please input the teacher's NO.:");      gets(tea[i].number);      printf("please input the teacher's name:");      gets(tea[i].name);      printf("please input the teacher's sex(man/woman 0/1):");      gets(tea[i].sex);      if(tea[i].sex[0]=='0') strcpy(tea[i].sex,"man");      else strcpy(tea[i].sex,"woman");      printf("please input the teacher's address:");      gets(tea[i].addr);      printf("the teacher is married(No/Yes 0/1):");      gets(tea[i].married);      if(tea[i].sex[0]=='0') strcpy(tea[i].sex,"No");      else strcpy(tea[i].sex,"Yes");     }     /*count(stud); */   }    display_tea(tea,0,numtea-1);   }   printf("Again to Adjust it ?(y/n)\n");   gets(str);   if(str[0]=='y'||str[0]=='Y')    i=-1;   else i=1;  } } int find_tea(Teacher tea[]) {  char str[10];  int i;  if(numtea==0)  {   printf("There is nothing\n");   return -1;  }  else  {   printf("what do you want your fashion ?\n1.number\t2.name\t3.addr\n");   gets(str);   if(str[0]=='1')   {    printf("please input the teacher's number:");    gets(str);    for(i=0;i<=numtea;i++)     if(strcmp(str,tea[i].number)==0)     {      display_tea(tea,i,i);      break;     }     else continue;   }   else if(str[0]=='2')   {    printf("please input the teacher's name:");    gets(str);    for(i=0;i<=numtea;i++)     if(strcmp(str,tea[i].name)==0)     {      display_tea(tea,i,i);      break;     }     else continue;   }   else if(str[0]=='3')   {    printf("please input the teacher's address:");    gets(str);   for(i=0;i<=numtea;i++)     if(strcmp(str,tea[i].addr)==0)     {      display_tea(tea,i,i);      break;     }     else continue;   }   if(i>numtea)   {    printf("Nothing has find\n");    return -1;   }   return i;  } } void delete_tea(Teacher tea[],int i) {  int j;  while(i>=0)  {   for(j=i;j1];   numtea--;   printf("Delete Success!\n");  } } int writetoTXT(Teacher tea[]) {  int i=0,j;  FILE *fp;  char filename[20];  printf("Please input the file's name:");  gets(filename);  fp=fopen(filename,"w");  fprintf(fp,"%d\n",numtea);  while(ifprintf(fp,"%s %s %s %s %s",tea[i].number,tea[i].name,tea[i].sex,tea[i].addr,tea[i].married);   i++;  }  fclose(fp);  printf("Save success!!!\n");  display_tea(tea,0,numtea-1);  numtea=0;  return 0; } int openfileTXT(Teacher tea[]) {  int i=0,j;  FILE *fp;  char filename[20],str[2];  if(numtea!=0)  {   printf("There has some records,Do you want to save them?(y/n)");   gets(str);   if(str[0]=='y'||str[0]=='Y')    writetoTXT(tea);  }  printf("Please input the file name:");  gets(filename);  numtea=0;  if((fp=fopen(filename,"rb+"))==NULL)  {   printf("Sorry ,can't open the file\n");   return(-1);  }  fscanf(fp,"%d",&numtea);  fgetc(fp);  while(ifscanf(fp,"%s",&tea[i].number);   fscanf(fp,"%s",&tea[i].name);   fscanf(fp,"%s",&tea[i].sex);   fscanf(fp,"%s",&tea[i].addr);   fscanf(fp,"%s",&tea[i].married);   i++;  }  fclose(fp);  printf("Read the file success\n");  printf("Display the record ?(y/n)");  gets(str);  if(str[0]=='y'||str[0]=='Y')   display_tea(tea,0,numtea-1);  return(0); } void displayTheSystemInfo() {  printf("\t\t制作人员: \n\n");  printf("\t\t张虎（BruceZhang）\n");  printf("\n\n"); } 

           

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