#include <stdio.h>
#include <stdlib.h>

int main()
{
    char ch;
    FILE *fp=fopen("D:\\test.txt","r");
     if(fp==NULL){
        printf("error!\n");
        return 0;
    }

        printf("从文件中读取的内容: ");
        ch=fgetc(fp);
        while(ch!=EOF)
        {
            putchar(ch);
            ch=fgetc(fp);
        }
        fclose(fp);
        return 0;
    }