c语言———练习题

1450阅读　0评论2014-11-27　追赶太阳小葵花
分类：C/C++


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  1. #include <stdio.h>
  2. int main()
  3. {
  4.     int    score;
  5.     scanf ("%d",&score);

  7.     if (score >    100)
  8.     {
  9.         printf ("you input the wrong scores \n");
  10.         return 0;
  11.     }
  12.     
  13.     else if (score < 0)
  14.     {
  15.         printf ("you input the wrong scores \n");
  16.         return 0;
  17.     }

  19.     
  20.     else if (score >= 90)
  21.     {
  22.         printf("the level of grade is 'A' \n ");
  23.     }
  24.     
  25.     else if (score >= 80)
  26.     {
  27.         if (score <= 89)
  28.         {
  29.             printf ("the level of grade is 'B' \n");
  30.         }
  31.     }
  32.     else if (score >= 70)
  33.     {
  34.         if(score <= 79)
  35.         {        
  36.             printf ("the level of grade is 'C' \n ");
  37.         }
  38.     }

  40.     else if (score >= 60)
  41.     {
  42.         if (score <= 69)
  43.         {
  44.             printf ("the level of grade is 'D' \n ");
  45.         }
  46.     }
  47.     else    
  48.     {
  49.         printf("the level of grade is 'E' \n ");
  50.     }
  51.     return 0;
  52. }

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