AddTransient，AddScoped和AddSingleton服务的差异？

Question

AddTransient，AddScoped和AddSingleton服务的差异？我想要实现dependency injection在Asp.Net Core。因此，在将此代码添加到ConfigureServices方法之后，两种方式都有效。services.AddTransient和service.AddScoped方法有Asp.Net Core什么区别？public void ConfigureServices(IServiceCollection services){     // Add framework services.     // Add application services.     services.AddTransient<IEmailSender, AuthMessageSender>();     services.AddScoped<IEmailSender, AuthMessageSender>();}