wc项目

 1 #include<stdio.h>
 2 #include<string.h>
 3 #include<stdlib.h>
 4 int c_char(FILE *fp)
 5 {
 6     int num = 0;
 7     char s[20];
 8     while (!feof(fp))
 9     {
10         fscanf_s(fp, "%s", s); //读取字符串
11         num += strlen(s); //叠加字符数
12     }
13     printf("字符数（不计空格和回车）有%d个\n", num);
14     rewind(fp); //绕回文件指针
15     return num;
16 }
17 int w_world(FILE *fp)
18 {
19     char s[20];
20     int n = 0, num = 0;
21     while (!feof(fp))
22     {
23         if (fscanf_s(fp, "%s", s) && !(s[0] >= ‘0‘ && s[0] <= ‘9‘))
24             n++;
25         else
26             num++;
27     }
28     printf("单词数有%d个，数字有%d个\n", n, num);
29     rewind(fp);
30     return n;
31 }
32 int l_line(FILE *fp)
33 {
34     int n = 1;
35     char ch;
36     while (!feof(fp))
37     {
38         if ((ch = fgetc(fp) == ‘\n‘))
39             n++;
40     }
41     printf("有%d行\n", n);
42     rewind(fp);
43     return n;
44 }
45 void main()
46 {
47     FILE *fp;
48     fp = fopen("1.txt", "r"); //打开文件
49     c_char(fp);
50     w_world(fp);
51     l_line(fp);
52     fclose(fp);
53 }