First install the .NETCORE support program in iis:
https://docs.microsoft.com/zh-cn/aspnet/core/host-and-deploy/iis/?view=aspnetcore-5.0
In the root directory of the current release, select exe to execute, and if there is an error, follow the prompts to solve
the effect of successful execution of exe:
Configuration
in IIS: In the application pool, make sure that it is set to unmanaged code
advanced configuration, whether 32 Bit, set to true
Is the published directory configured for everyone to access