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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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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