#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#define LEN 100
int main()
{
    FILE  *f,*fp;
    int i,j;
    char name[LEN];
    long m;
    if((f=fopen("test.txt","rb+"))==NULL)
    {
        printf("can't open this file");
        exit(1);
    }

   
    for(i=1;i<=100;i++)
    {
        char a[1024];
        m=(long)(1048576*(i-1));
        fseek(f,m,SEEK_CUR);
        strcpy(name,i);
        if((fp=fopen(name,"wb+"))==NULL)
        {
            printf("error");
            exit(2);
        }
        for(j=0;j<1024;j++)
        {
            fread(a,sizeof(char),1024,f);
            fwrite(a,sizeof(char),1024,fp);
        }
        fclose(fp);
    }
   
   
    fclose(f);
    return 0;
}

把100M分成100份，每份1M

先分2份  3份 4份   这样好调试

把所有exit 替换为return

好的，谢谢啦，改了，好像不是这个问题，我分小点试试

    strcpy(name,i);
i不是char*型  

嗯，后来我也找到了，不过这个怎么改呢，想了好久，应该就是把一堆字符串用循环赋给数组，这个怎么改呢？

strcmp()这条语句本意是想实现哪两个字符串的复制？

#define LEN 100
int main()
{
    FILE  *f,*fp;
    int i,j;
    char *name[LEN];
    long m;
    char buf[1*1024*1024]={'0'};
    if((f=fopen("test.txt","rb+"))==NULL)
    {
        printf("can't open this file");
        exit(1);
    }

        for(i=0;i<100;i++)
        {
            sprintf(name[i],"%s",i);
            fp=fopen(name[i],"wb");
            if(NULL == fp)
               return 1;
            memset(buf,0,1024);   
            fread(buf,sizeof(char),1*1024*1024,f);
            fwrite(buf,sizeof(char),1*1024*1024,fp);
            fseek(0,(i+1)*1024*1024,SEEK_CUR);
            fclose(fp);
            }
        return 0;

收到的鲜花

• hvhds 于 2013-07-25 18:08 送鲜花  3朵  

fseek(0,(i+1)*1024*1024,SEEK_CUR);
写错了
fseek(f,(i+1)*1024*1024,SEEK_CUR);