用c语言打开文件，并统计里面的各种东西得个数

Question

求求大佬帮忙，孩子快急哭了把啊啊啊啊啊啊啊啊啊啊啊啊啊啊啊啊啊啊啊啊啊啊啊啊

Answer 1

#include <stdio.h>
int main()
{
 FILE *fp;
 int  num=0,others=0,chars=0;
 char ch;
 fp=fopen("data.txt","r");
 if(fp==NULL)
 {
    printf("Open file error!\n");
    exit (0);
 }
 while(1)
 {
    if(fscanf(fp,"%c",&ch) != 1) break;
    if(ch >= '0' && ch <= '9')
         num++;
    else if((ch >= 'A'&& ch <= 'Z')||(ch >= 'a'&& ch <= 'z'))
         chars++;
    else others++;
 }
 fclose(fp);
 printf("num:%d chars:%d others:%d\n",num,chars,others);
 return 0;
}