不能查询每个学生的数据了啊。看不出来。。。。。。脑子想大了。。
这个文件：http://www.
代码：
#include <stdio.h>
#define C 40                                                                    //set line length
#define N 5                                                                        //set count of student
char name[N][10];
float mark[N][3];
char loading();
char line();
int input();
int search();
//----------------------------------------------------------------------------------
main()
{
    int r;                                                                        //o is choose of user,"r to recycle"
    int o;
    for(r=1;r<100;r++)
  { system("cls");
    printf(" Main Menu\n");
    line(C);                                                                    /*output '*'*/
    printf("* 1.  input data\n* 2.  search score\n* 3.  exit\n");                /* show interface*/
    line(C);                                                                    /*output '*'*/
    printf("please choose:  ");
    scanf("%d",&o);                                                            
    switch(o)                                                                    /*redirection*/
     {
        case 1:input(); break;
        case 2:search(); break;
        case 3:exit(1); break;
        default: {printf("\n Not a option,Please choose again.");getch();} break;
     }
  }   
    return 0;
}
//---------------------------------------------------------------------------------
char loading()
{
      int i,r;
      printf("\n\n     ");
      for(i=1;i<29;i++)
            {
               system("cls");                                                        //may i choose "clrscr"
            printf("\n\n searching");
            sleep(5);
            for(r=30-i;r<30;r++)
                     printf(".");
                                                                                //printf("@^_^@");
            }
      return 0;
}
//----------------------------------------------------------------------------------
char line(int n)                                                                /*define '*' */
{
    int i;
    for(i=1;i<=n;i++)
        printf("*");
    printf("\n");
    return 0;
}
//-----------------------------------------------------------------------------------
int input()
{
    int i,x;
    system("cls");
    printf(" Input Data(Total: %d)\n",N);
    for(i=0;i<N;i++)
    {
        line(C);                                                                /*output '*'*/
        printf("No.%d \n name: ",i+1);
        scanf("%s",name[i]);
        for(x=0;x<3;x++)
          {    printf("\n score of %d: ",x);
            scanf("%f",mark[i]);
          }
        printf("\n");
    }
    line(C);
    getch();
    return 0;   
}
//----------------------------------------------------------------------------------
int search()
{
    char sname[10];
    int i,g;
    system("cls");
    printf(" Search System\n");
    line(C);                                                                    /*output '*'*/
    printf("Please input Name: ");                                
    scanf("%s",sname);
    for(g=0;g<N;g++)
        if(strcmp(sname,name[g])==0)
            break;
    if(g<N)
    {
            loading();
            system("cls");
            printf("\n Result of Search\n");
            line(C);                                                            /*output '*'*/
            {printf("Name: %s\n",name[g]);
                printf("Score: %s\n",mark[g]);}
    }
    else
    {
            printf("There is NO result of Name: %s",sname);
    }

    getch();
    return 0;
}