#include <stdio.h>
#include "func.cpp"
int  main()
{
    FILE* fp;
    fp=fopen("d:\\b.txt","r");
    char flag=0xA;
    int lines=0;
    char tline[256]={'\0'};
    char* cp=tline;
    char tmp;
    while(!feof(fp))
    {
    
        tmp=getc(fp);
        if (tmp==flag) lines++;
        if ((lines==5) && (tmp!=flag))
        {
            *cp=tmp;
            cp++;
        }

    }
    printf("lines=%d\n",lines);
    printf("第5+1行数据是:%s\n",tline);
    fclose(fp);
    return 0;
}