https://dotnet.microsoft.com/download/dotnet-core
https://dotnet.microsoft.com/download/dotnet/current/runtime
.netCore 部署IIS 需要安装三个程序
1.dotnet-hosting-3.1.3-win.exe
2.dotnet-sdk-3.1.402-win-x64.exe
3.aspnetcore-runtime-3.1.8-win-x64.exe
原文：https://www.cnblogs.com/wugh8726254/p/14890455.html