小妹需要帮助

《小妹需要帮助》有 3 条评论

1. 细雨霏霏 说：

   2009 年 1 月 5 日上午 10:58

   有个错误提示：

   error:do statement must have while

   帮我看看啊

   —————————————————————————————————— 

     #include<stdio.h>
      #include<stdlib.h>/*to ues the srand(),rand()and exit() functions*/
      #include<time.h>/*to use the time() function*/
      #include<string.h>/*to ues the strlen() functions*/
      #include<ctype.h> /*to use the isalpha() and isdigit()functions*/
      #define IDNUM 7
      #define TNUM 10
      #define T 1
      #define F 0

      int main()
      {
       int ValidID(char []);
       void Test(char []);
       void Check(char []);
       FILE *fp;
       char ID[IDNUM],IDnumber[IDNUM];
     
       int choice,j,i;
       int score,time;

       printf(“*********************************************************\n”);
       printf(“               Welcome to use this system! \n “);
       printf(“                    ****************\n”);
       printf(“                Made by Miao Zhou(08213196)\n”);
       printf(“**********************************************************\n”);
    
       inputIDnumber:
       printf(“Please enter your ID number:\n”);
       gets(ID);

       while(ValidID(ID)==F) /*check whether the number is valid */
        {
          printf(“\nSorry, this number is not valid! Please enter another one.\n”);
          goto inputIDnumber;/* enter an ID again */
        
         }
          printf(“                  Hello! No.%s!\n”,ID);
          printf(“\n”);
       do
        {
         printf(“\nWhat do you want to do?\n”);/*choose what the student want to do.*/
         printf(“(a) Start a test.\n”);
         printf(“(b) Check your scores.\n “);
         printf(“(c) Exit.\n”);
         printf(“\nPlease enter the nunber your choice:\n”);
         scanf(“%c”,&choice);

        switch(choice)
         {
          case’a':/*choose 1 and begin a test.*/
          printf(“\nWelcome to enter the test.\nPlease answer the question one by one.\n”);
          Test(ID);
          break;

          case’b':
          fp=fopen(“record.txt”,”a”);
           if( fp == NULL ) /*to check whether the file is opened successfully*/
           {
      printf(“\nError!The file can not be opened.\n”);
      exit(1);
            }   
             i = 0;  /*initialize i to 0 */
             while( fscanf(fp,”%4s   %4d   %4d “,&IDnumber,&score,&time)!=EOF )
              {
               if( strcmp(ID,IDnumber)==0 )/*if the recorded ID is the same as the studnet’s ID*/
         {
           printf(“%10s %10d %10d seconds\n”,IDnumber,score,time);/*printf the record*/
           i=+1;
          }
               }
            
             if(i==0)   /*Check whether there exists records for the student or not*/
             printf(“Sorry!There is no record of your ID No.\n”);
             fclose(fp);/*close the file*/
             break;

          case’c':
          exit(1);
          }while(1);
          return 0;

       }

     int ValidID(char ID[IDNUM])/* ensure whether the ID is valed */
      {
       int a;
       if(strlen(ID)!=IDNUM)
       return 0;           /* ensure the number of the characters are 6.*/
       for(a=0;a<=1;a++)
       if(isalpha(ID[a])==0)
       return 0;            /* ensure the first and the second characters are litters.*/
       for(a=2;a<=5;a++)
       if(isdigit(ID[a])==0)
       return 0;            /* ensure the others are digits.*/

       return 1;/*ID is valid, return 1 to the function.*/
     }

    void Test(char ID[IDNUM])
    {
    
      int num1,num2,condition,i,j;
      int correct_a[TNUM],student_a[TNUM];
      int score=0;
      char sim;
      char n1[TNUM],n2[TNUM],sym[TNUM];
      long int start,end,all;

      printf(“\n Print Enter to start the test.\n”);
      getchar();
     
      srand(time(NULL));/*generate a “seed” value.*/
      start=time(NULL);/* start to record the time.*/
   for(i=0;i<10;)
   {
      do
       {
         n1[i]=0+(int)rand()%100;
         n2[i]=0+(int)rand()%100;
         condition=1+(int)rand()%100;

         switch(condition)
           {
             case 1:
             sim=’+';
             correct_a[i]=n1[i]+n2[i];
             break;

             case 2:
             sim=’-';
             correct_a[i]=n1[i]-n2[i];
             break;

             case 3:
             sim=’*';
             correct_a[i]=n1[i]*n2[i];
             break;

             case 4:
             sim=’/';         
             correct_a[i]=n1[i]/n2[i];
             break;
            }    
         
           if(correct_a[i]>100||correct_a[i]<0||correct_a[i]||n1[i]%n2[i]=0||n2[i]==0)
           {
             i=i;
             continue;
            }
           else
            {
              printf(“%d %c %d =”,n1[i],sim,n2[i]);
              scanf(“%f”,&student_a[i]);
      
              if(correct_a[i]=student_a[i])
                 {
                  score=score+10;
                   i++;
                  
                  }
             }
             j=1;
           }while(j=1)
      }           
         end=time(NULL);
         all=(end-start)/CLK_TCK;
    
    FILE *outfile;
    
    outfile=fopen(“record.txt”,”a”);
    
    if (outfile==NULL)
     {
     printf (“Failed to open the file.\n”);
     exit(1);
     }
           fprintf(outfile,”%s   %d   %d \n”,ID,score,all);
           fclose(outfile);

         printf(“\n The test end.\n\n”);
         printf(“\n      Prob.      |     Correct Answ.       |     Ur Answ.   \n”);
         for(i=0;i<TNUM;i++)
        {
          printf(“(%d)%3d %c %4d         %12d       %15d\n”,i+1,n1[i],sym[i],n2[i],correct_a[i],student_a[i]);
          }
         printf(“\n\n You spent %d seconds to finish the test.”,end-start);
         printf(“\n You score is %d.”,score);

   printf(“\n Press Enter to return to menu.”);
   getchar();
   }}}
2. hiroki 说：

   2009 年 1 月 5 日下午 4:16

   真是不错啊
3. 细雨霏霏 说：

   2009 年 1 月 5 日下午 4:40

   哥哥啊，不错什么啊，调试通过不了。