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undefined reference to `vtable for testshow' #4

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yuchuxiang opened this issue Jul 11, 2023 · 1 comment
Open

undefined reference to `vtable for testshow' #4

yuchuxiang opened this issue Jul 11, 2023 · 1 comment

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@yuchuxiang
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博主您好，我在编译代码的时候，遇到 undefined reference to `vtable for testshow'这种问题，请问是出现了什么问题！
@WelinLee
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Qt中如要支持信号与槽机制需要继承QObject，然后类声明里面也要有Q_OBJECT宏。可以从这个方面再检查一下。

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@WelinLee @yuchuxiang