每次读取部分文件到内存中

std::fstream fin("fine.name",std::fstream::in|std::fstream::ate);
    if(fin.good()) {
        size_t file_size=fin.tellg();
        fin.seekg(0,std::fstream::beg);
        
        size_t read_per=100;
        size_t read_sum=0;
        std::vector file_data_vec(read_per,0);

        while(read_sum

转载于:https://www.cnblogs.com/smallredness/p/10936303.html