VS使用过程中几个好用的下载网站
https://marketplace.visualstudio.com/search?target=VS&category=Tools&vsVersion=&subCategory=All&sortBy=Installs
NuGet程序包源
https://www.nuget.org/api/v2/
https://api.nuget.org/v3/index.json
https://nuget.cdn.azure.cn/v3/index.json
https://mirrors.cloud.tencent.com/nuget/
