When an argument expression has no effects and its corresponding parameter is never used, the expression may be eliminated. However, if the expression contains the last reference to a local variable at the caller, this may cause a compile error because the variable is now unused.
Фото: David Swanson / Reuters
，详情可参考爱思助手
В сети обругали обнаженную фотосессию Кайли Дженнер для Vanity Fair20:46
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8点1氪丨微信新功能可“忽略”语音/视频来电；多所高校紧急禁用AI龙虾；苹果折叠屏顶配或超2万元。关于这个话题，博客提供了深入分析