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| #include <filesystem> #include <iostream>
namespace fs = std::filesystem; std::string path = "/Users/oliverzhu/Desktop/test_video/"; for (const auto &entry : fs::directory_iterator(path)){ //将文件夹下所有文件名得到 std::string inputpath = entry.path(); std::string::size_type nPos1 = std::string::npos; std::string::size_type nPos2 = std::string::npos; nPos1 = inputpath.find_last_of("/"); nPos2 = inputpath.find_last_of("."); //截取/开始 长度为nPos2-nPos1-1的字符串 std::string strPath = inputpath.substr(nPos1 + 1, nPos2-nPos1-1); std::string input_path; std::string output_path; if (nPos2-nPos1 > 1) { // vaild input path input_path = inputpath; output_path = "/Users/oliverzhu/Desktop/results/" + strPath + ".mp4"; std::cout << input_path << std::endl; std::cout << output_path << std::endl; }
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https://codeantenna.com/a/vhWRDy0wan