C语言 统计一串字符中空格键、Tab键、回车键、字…

 1 #include<stdio.h>
 2 
 3 void main(){
 4     int c, letter=0, num=0, blank=0, tab=0, enter=0, other=0 ,i=0, sum=0;
 5     printf("Please input a string:\n");
 6     while((c=getchar())!=EOF){
 7         sum++;
 8         if(c==' '){
 9             ++blank;  //空格键的个数
10         }
11         else if(c=='\t'){
12             ++tab;   //Tab键的个数
13         }
14         else if(c=='\n'){
15             ++enter;   //回车键的个数
16         }
17         else if((c>='A' && c<='Z') || (c>='a' && c<='z')){
18             ++letter;    //字母的个数
19         }
20         else if(c>='0' && c<='9'){
21             ++num;      //数字的个数
22         }
23         else ++other;     //其他字符的个数
24         i++;
25     }
26     printf("There are %d characters\n", sum);
27     printf("blank=%d, Tab=%d, Enter=%d, letter=%d, number=%d ,other=%d\n",blank, tab, enter, letter, num, other);
28 
29 }