如何使用

Microsoft.Extensions.Logging
 
public static void Main(string[] args = null) { 
 ILoggerFactory loggerFactory = new LoggerFactory().AddConsole().AddDebug();  
 ILogger logger = loggerFactory.CreateLogger<Program>();  
 logger.LogInformation(     "This is a test of the emergency broadcast system."); }

详细参考：https://msdn.microsoft.com/magazine/mt694089

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