#include "stdio.h"
#include "stdlib.h"
#include <malloc.h>
#include "string.h"
#include "windows.h"
#define path "c:\\calc.exe"
#define Newpath "c:\\calcNew.exe"

int GetFsize(FILE* pf)
{
    fseek(pf,0,SEEK_END);
     int size=ftell(pf);
    return size;
}



void main()
{
    FILE* PFile;
    FILE* PFileNew;
    PFile=fopen(path,"rb");
    PFileNew=fopen(Newpath,"wb");

    if (PFile==NULL||PFileNew==NULL)
    {
        printf("文件打开和创建失败!\n");
        return;
    }
    int size=GetFsize(PFile);
    printf("%d字节\n",size);
    char* pmalloc=(char*)malloc(sizeof(char)*size);
    printf("%p\n",pmalloc);
    memset(pmalloc,0,sizeof(char)*size+1);
    fseek(PFile,0,SEEK_SET);
    for (int i=0;i<size;i++)
    {
        fread(pmalloc,sizeof(char),size,PFile);

    }
    fseek(PFileNew,0,SEEK_SET);
    for (int k=0; k<size; k++)
    {
        fwrite(pmalloc,sizeof(char),size,PFileNew);
        
    }
    





    system("pause");


}