一串字符求字母数据空格等的个数.txt

全部是一些基础的平时练习及作业题！都有源代码

#include   "stdio.h"
  #include   "conio.h"   
  main()   
  {   
      char   c;   
      int   letters=0,space=0,digit=0,others=0;   
      printf("please   input   some   characters\n");   
    
    
      while((c=getchar())!='\n')   
    
    
      {   
          if(c>='a'&&c<='z'||c>='A'&&c<='Z')   
              letters++;   
              else   if(c==' ')   
                  space++;   
                  else   if(c>='0'&&c<='9')   
                      digit++;   
                  else   
                      others++;   
      }   
      printf("all   in   all:char=%d   space=%d   digit=%d   others=%d\n",letters,   
      space,digit,others);   
      getch();   
  }