[C++知识库]C++读取bin二进制文件

void read_firm(){
    char path[] = R"(C:\Users\yanzhichen\Desktop\file_share\hikvision_firmware\IPC_E2_EN_STD_5.4.4_161105.dav)";
    ifstream fin;
    fin.open(path, ios::binary);
    if(!fin){
        cout<<"open error!"<<endl;
        return;
    }
    // 将读写位置移动到文件末尾，获取文件大小
    fin.seekg(0, ios_base::end);
    long long firm_len = fin.tellg();
    printf("size of firm: %lld\n", firm_len);

    // 将读写位置移动到文件开头，申请内存，将固件内容存入 pSrcBuf
    fin.seekg(0, ios_base::beg);
    auto* pSrcBuf = new char[firm_len];
    fin.read((char*)pSrcBuf, sizeof(char) * firm_len);

    for(int i = 0; i < firm_len;){
        if (i % 16 != 0) printf(" ");
        printf("%02X", (unsigned char)pSrcBuf[i]);
        i++;
        if (i % 16 == 0) printf("\n");
    }
    delete [] pSrcBuf;
}

效果图：