Win10编译linphone-windows项目文件

linphone-windows项目需要先python3生成sln项目文件：

问题1：斜杠“\”改成反斜杠“/”

"""Project("{{E8FB6309-B31E-4380-992C-BB1609B3EA00}}") = "Nuget{target}", "WORK/Nuget{target}.vcxproj", "{project_guid}"
\tProjectSection(ProjectDependencies) = postProject
{project_dependencies}\tEndProjectSection
EndProject
""".format(target=target, project_guid=guid, project_dependencies=project_dependencies)

问题2：161，162行，urllib.urlretrieve改为urllib.request.urlretrieve，同时import urllib.request

       if not os.path.isfile('WORK/nuget.exe'):
            urllib.request.urlretrieve("https://dist.nuget.org/win-x86-commandline/latest/nuget.exe", "WORK/nuget.exe", reporthook = self.nuget_download_reporthook)