实验4
#include<stdlib.h>
#include<stdio.h>
int main ()
{
FILE *fp;
char ch;
int count=0;
fp=fopen("data4.text","r");
if(fp==NULL)
{
printf("无法打开文件");
return 0;
}
while ((ch=fgetc(fp))!=EOF)
{
if(ch!=' '&&ch!='\n'&&ch!='\t')
{
count++;
}
}fclose(fp);
printf("文件中字符数(不包括空白符):%d\n",count);
return 0;
}

