QT---error: 'class Ui::MyWidget' has no member named 'pushButton_3'
錯誤 error: 'class Ui::MyWidget' has no member named 'pushButton_3' 經百度知道原因是： 在你的Designer設計的圖形界面 繪畫的 空間裏面,沒有 objectname 爲pushButton的控件 你可以找找裏面的pushButton控件,裏面的objectname到底是什麼. 查看我的ui文件： 確實沒有pushButton
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