# code#1
import sys
from PyQt5.QtWidgets import QApplication, QPushButton
def onResize(event):
print("Nice to get here!")
if __name__ == "__main__":
app = QApplication(sys.argv)
widget = QPushButton('Test')
widget.resize(640, 480)
widget.show()
widget.resizeEvent = onResize
sys.exit(app.exec_())
此代码#1中从未触发过新的resizeEvent(当我手动调整窗口大小时。)>
# code#2 import sys from PyQt5.QtWidgets import QApplication, QPushButton def onResize(event): print("Nice to get here!") if __name__ == "__main__": app = QApplication(sys.argv) widget = QPushButton('Test') widget.resize(640, 480) widget.resizeEvent = onResize widget.show() sys.exit(app.exec_())
新的resizeEvent在此代码#2中很好地触发了(当我手动调整窗口大小时)。而且我可以看到味精打印出来。
有人知道原因吗?即使我在代码#1的widget.update()
之后添加widget.show()
和widget.resizeEvent = onResize
,resizeEvent代码也保持沉默...
### 1从PyQt5.QtWidgets导入sys导入QApplication,QPushButton def onResize(event):print(“很高兴来到这里!”)如果__name__ ==“ __main__”:app = QApplication(sys.argv)小部件= ...