archive

I am trying to build an archive from a collection of object files. I am doing this with ar -rs my_archive.a foo.o bar.o other_object_files.o . On a linux machine everything is fine but when I try the very same command on my mac it seems like only some object files are added. This results in undefined symbols corresponding to subroutines in, let's say, other_object_files.o . Moreover, if I try to manually link the object files that gave rise to undefined symbols, I can properly build the executable. That is ifort -o my_exec main.o other_object_files.o my_archive.a works fine. Am I missing some

序列化、反序列化一个map对象： #include <fstream> #include "boost/archive/binary_oarchive.hpp" #include "boost/archive/binary_iarchive.hpp" #include <boost/serialization/map.hpp> int main() { //序列化 std::map<int, std::string> mapOut; mapOut.insert({ 1, "mapItem1" }); mapOut.insert({ 2, "mapItem2" }); std::ofstream outFile("Seri.bin", std::ofstream::binary); boost::archive::binary_oarchive oa(outFile); oa << mapOut; outFile.close(); //反序列化 std::map<int, std::string> mapIn; std::ifstream inFile("Seri.bin", std::ofstream::binary); boost::archive::binary_iarchive ia(inFile); ia >> mapIn; getchar(); return 0; }

I know about this question . But you can’t write to filesystem in app engine (shutil or zipfile require creating files) . So basically I need to archive something like /base/nacl using zip or tar, and write the output to the web browser asking the page (the output will never exceed 32 Mb) . It just happened that I had to solve the exact same problem tonight :) This worked for me: import StringIO import tarfile fd = StringIO.StringIO() with tarfile.open(mode="w:gz", fileobj=fd) as tgz: tgz.add('dir_to_download') self.response.headers['Content-Type'] ='application/octet-stream' self.response

原文引用 https://www.dazhuanlan.com/2019/08/25/5d621fdc74cb0/ 归档: 13篇 2099 前端接口设计网站汇总 2019 2019-08-18 Springcloud学习笔记(五) 2019-08-18 Springcloud学习笔记(四) 2019-08-17 Springcloud学习笔记(三) 2019-08-17 Springcloud学习笔记(二) 2019-08-17 Springcloud学习笔记(一) 2019-08-14 Docker部署安装MongoDB 2019-08-14 Nodejs学习 2019-08-13 Java多线程 2019-08-12 实用Mysql时间sql 来源： https://www.cnblogs.com/petewell/p/11407872.html

I want to use PyLZMA to extract a file from an archive (e.g. test.7z) and extract it to the same directory. I'm a newbie to Python and have no idea how to start. I've done some googling and found some examples and docs , but I don't understand how they work. Could someone please post the basic code for what I want to do so that I can start to work and understand? Brian B Here is a Python class to handle the basic functionality. I have used it for my own work: import py7zlib class SevenZFile(object): @classmethod def is_7zfile(cls, filepath): ''' Class method: determine if file path points to a