各位大大.. 不好意思!我才剛剛接觸C,所以買了本書看,照著key,可是到底下這各程式,complie出來卻有 "empty character constant "這各問題,可以幫我看一下ㄇ@@~~謝謝~~    #include #include int main() { int grade ; int aCount = 0, bCount = 0, cCount = 0, dCount = 0, fCount = 0; printf("Enter the letter grades.\n"); printf("Enter the EOF character to end input.\n"); while((grade = getchar()) != EOF ){ switch (grade){ case 'A' : case 'a': aCount; break; case 'B' : case 'b': bCount; break; case 'C' : case 'c': cCount; break; case 'D' : case 'd': dCount; break; case 'F' : case 'f': fCount; break; case '\n' : case '': break; default: printf("Incorrect letter grade entered."); printf("Enter a new grade.\n"); break; } } printf("\nTotal for each letter grade are:\n"); printf("A: %d\n", aCount); printf("B: %d\n", bCount); printf("C: %d\n", cCount); printf("D: %d\n", dCount); printf("F: %d\n", fCount); system("pause"); return 0; } 46 C:\Dev-C-test\chapter 4\Fig4.7.cpp:30 empty character constant

 
int main()
  {
  int grade ;
  int aCount = 0, bCount = 0, cCount = 0,
  dCount = 0, fCount = 0;       printf("Enter the letter grades.\n");
  printf("Enter the EOF character to end input.\n");      while((grade = getchar()) != EOF )
    {
    switch (grade)
      {
      case 'A' : case 'a':
        aCount;
      break;
      case 'B' : case 'b':
        bCount;
      break;
      case 'C' : case 'c':
        cCount;
      break;
      case 'D' : case 'd':
        dCount;
      break;
      case 'F' : case 'f':
        fCount;
      break;
    //  case '\n' : case '':   
    //  break;  拿掉這二行          default:
      printf("Incorrect letter grade entered.");
      printf("Enter a new grade.\n");
      break;
      } 
    }
  printf("\nTotal for each letter grade are:\n");
  printf("A: %d\n", aCount);
  printf("B: %d\n", bCount);
  printf("C: %d\n", cCount);
  printf("D: %d\n", dCount);
  printf("F: %d\n", fCount);
  system("pause");      return 0;
  }    

另外...你要自己學著從Complier所出現的錯誤來看你可能錯在那... 46 C:\Dev-C-test\chapter 4\Fig4.7.cpp:30 empty character constant 就是說明了..你的錯誤在30行... 剛好就是我指的那個地方... 對不起...講話可能比較衝... 但...基本上..是希望你在學習的過程中..能更順利罷了..沒惡意喲..^^ =========== 有興趣,就能進步 =========== 發表人 - fnk 於 2005/03/10 09:47:38

阿哩阿多~~ 可以了...謝謝... 我會繼續加油~~