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[IOS]Null passed to a callee that requires a non-null argument

日月同辉9908 2022-08-05 阅读 120


 遇到warning:Null passed to a callee that requires a non-null argument

只需要在变量前加上_Nullable,例如

HwIpPingDiagnosticsResult  * _Nullable pingResult

 

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