C语言文件的读取读不到第一行

Question

最近在家又开始看一看C 结果发现文件这块不太熟练 用的时候发现使用文件读取txt里的内容时读不到第一行的内容 感到有些疑惑 我用的是devcpp 希望有老哥指点一二

#include<iostream>
#include<cstring>
using namespace std;
int block_num=0;
int page_num=0;
int river[20]={0};
void read_data()
{
    FILE *fp;
    fp=fopen("page.txt","rt");

    if(fp==NULL)
    {
        printf("error!\n");
        exit(0);
    }
    char buffer[100];
    fgets(buffer,100,fp);
    fscanf(fp,"%d%d",&block_num,&page_num);

    /*do
    {
        fscanf(fp,"%d",&block_num);
        fscanf(fp,"%d",&page_num);
        for(int i = 0;i<page_num;i++)
        {
            fscanf(fp,"%d",&river[i]);
        }
    }while(!feof(fp));*/
    cout<<"block_num is "<<block_num<<"page_num is "<<page_num<<endl;
/*  for(int i=0;i<page_num;i++)
    cout<<river[i]<<" "<<endl;*/

}
int main()
{
    read_data();
}

Answer 1

你把18行的
fgets(buffer,100,fp);
注释掉再试试。