c++ 拷贝资源方法

#include "stdio.h"

#include "stdlib.h"

#include <sys/types.h>

#include <sys/stat.h>

#include <errno.h>

#include <dirent.h>

bool copyFile(const std::string & targetPath,const std::string & sourcePath)

{

    if(targetPath.empty() || sourcePath.empty())

        return false;

    

    FILE * read_fp = fopen(targetPath.c_str(),"rb");--使用二进制读取

    if(!read_fp)

        return false;

    

    fseek(read_fp,0,SEEK_END);

    size_t size = ftell(read_fp);

    fseek(read_fp,0,SEEK_SET);

    

    unsigned char* buffer = new unsigned char[size];

    fread(buffer,sizeof(unsigned char),size,read_fp);

    fclose(read_fp);

    

    if(nullptr == buffer)

        return false;

    

        FILE * write_fp=fopen(targetPath.c_str(),"wb+");//拷贝

        

        fwrite(buffer, sizeof(unsigned char),size,write_fp);

        fclose(write_fp);

        return true;

}