程序代码：

#include<stdio.h>
#include<stdlib.h>
int main(void)
{
    FILE *fp;
    int ch;
    long count=0;
    char name[41];
    printf("输入文件的名称:");
    scanf("%s",name);
    if((fp=fopen(name,"r"))==NULL)
    {
        printf("不能打开%s\n",name);
        exit(1);
    }
    while((ch=getc(fp)!=EOF))
    {
        putc(ch,stdout);
        count++;
    }
    fclose(fp);
    printf("\n文件 %s has %ld 字符\n",name);
    return 0;
}