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关于观察者模式中CurrentConditionsDisplay的构造函数 #5

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icecreampat opened this issue Jul 12, 2023 · 1 comment
Open

关于观察者模式中CurrentConditionsDisplay的构造函数 #5

icecreampat opened this issue Jul 12, 2023 · 1 comment

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@icecreampat
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你好，想问一下在CurrentConditionsDisplay类中，为什么不能把weatherdate->registerObserver(this);这句直接放在构造函数中呢。我放进去后会显示段错误，但不知道是什么原因造成的。
@zihaozhang9
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zihaozhang9 commented Jul 12, 2023 via email

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@zihaozhang9 @icecreampat