控制台输出日志。
安装Microsoft.Extensions.Logging和Microsoft.Extensions.Logging.Console

简单使用

static void Main(string[] args)
{
    ServiceCollection sc=new ServiceCollection();
    sc.AddLogging(logBuilder=>logBuilder.AddConsole());
    sc.AddScoped<Test>();
    var sp = sc.BuildServiceProvider();
    Test test = sp.GetRequiredService<Test>();
    test.logTest();
}
public class Test
{
    private ILogger<Test> log;
    public Test(ILogger<Test> log)
    {
        this.log = log;
    }
    public void logTest()
    {
        log.LogDebug("Debug：开始调试");
        log.LogInformation("info：默认日志");
        log.LogWarning("warn：警告日志");
        log.LogError("Error：错误日志");
    }
}