解决报错：Unable to resolve service for type 'AspNetCoreRateLimit.IProcessingStrategy' while at

Unable to resolve service for type 'AspNetCoreRateLimit.IProcessingStrategy' while attempting to activate 'AspNetCoreRateLimit.IpRateLimitMiddleware

4.x起，需在Startup.cs的ConfigureServices(IServiceCollection services)中注册：

services.AddSingleton();

https://github.com/stefanprodan/AspNetCoreRateLimit/releases/tag/4.0.0