扩展 IL.Extensions.Configuration.Memory.NewtonsoftJson 使用为创建带有JSON字符串或JSON可序列化对象的 。 之前: configurationBuilder . AddInMemoryCollection ( new Dictionary < string> { { " A:B " , " 100 " }, { " A:C:D " , " xx " }, { " A:C:E " , " 2020-03-29T14:22:30.000Z " }, }) 现在: configurationBuilder .