1.nuget:

2、DbContext中加入一下語句:
//輸出到debug輸出 public static readonly LoggerFactory LoggerFactory = new LoggerFactory(new[] { new DebugLoggerProvider() });

protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder) { base.OnConfiguring(optionsBuilder); optionsBuilder.UseLoggerFactory(LoggerFactory); }
3、在輸出窗口中看到:

