项目中有太多Null了，在项目文件中添加这条语句使编译器对可能为null的值发出警告 ```xml <Nullable>enable</Nullable> ``` https://github.com/KonataDev/Konata.Core/blob/5908b1609b5def65aac9cc2cf32ff9ca69d798cf/Konata.Core/Konata.Core.csproj#L4-L9 https://learn.microsoft.com/dotnet/csharp/language-reference/builtin-types/nullable-value-types
项目中有太多Null了，在项目文件中添加这条语句使编译器对可能为null的值发出警告
Konata.Core/Konata.Core/Konata.Core.csproj
Lines 4 to 9 in 5908b16
https://learn.microsoft.com/dotnet/csharp/language-reference/builtin-types/nullable-value-types