用C++统计多行文本中的字符数、单词数和行数

#include
#include
int n_char(FILE *fp)
{
int num = 0;
char s[20];
while(!feof(fp))
{
fscanf(fp, "%s", s); //读取字符串
num += strlen(s); //叠加字符数
}
printf("字符数（不计空格和回车）有%d个\n",num);
rewind(fp); //绕回文件指针
return num;
}
int n_world(FILE *fp)
{
char s[20];
int n = 0, num = 0;
while(!feof(fp))
{
if(fscanf(fp, "%s", s) && !(s[0] >='0' && s[0] <='9'))
n++;
else
num++;
}
printf("单词数有%d个，数字有%d个\n",n,num);
rewind(fp);
return n;
}
int n_row(FILE *fp)
{
int n = 1;
char ch;
while(!feof(fp))
{
if((ch = fgetc(fp) == '\n'))
n++;
}
printf("有%d行\n", n);
rewind(fp);
return n;
}
void main()
{
FILE *fp;
fp = fopen("d:\\aaa.txt", "r"); //打开文件
n_char(fp);
n_world(fp);
n_row(fp);
fclose(fp);
}

#include
#include
int
n_char(FILE
*fp)
{
int
num
=
0;
char
s[20];
while(!feof(fp))
{
fscanf(fp,
"%s",
s);
//读取字符串
num
+=
strlen(s);
//叠加字符数
}
printf("字符数（不计空格和回车）有%d个\n",num);
rewind(fp);
//绕回文件指针
return
num;
}
int
n_world(FILE
*fp)
{
char
s[20];
int
n
=
0,
num
=
0;
while(!feof(fp))
{
if(fscanf(fp,
"%s",
s)
&&
!(s[0]
>='0'
&&
s[0]
<='9'))
n++;
else
num++;
}
printf("单词数有%d个，数字有%d个\n",n,num);
rewind(fp);
return
n;
}
int
n_row(FILE
*fp)
{
int
n
=
1;
char
ch;
while(!feof(fp))
{
if((ch
=
fgetc(fp)
==
'\n'))
n++;
}
printf("有%d行\n",
n);
rewind(fp);
return
n;
}
void
main()
{
FILE
*fp;
fp
=
fopen("d:\\aaa.txt",
"r");
//打开文件
n_char(fp);
n_world(fp);
n_row(fp);
fclose(fp);
}

怎么看着好像是学生的作业

嗯哪，应该是学生作业，分再高也不能帮啊，咱不能误人子弟。