是否可以通过粘贴 lineEdit 来缩短 PyQt5 中的代码？

Question

我有 7 个lineEdit块，我希望textChanged function 在它们中的任何一个更改时触发，我决定采用简单的方法并按顺序写出它们，但现在我想缩短我的代码。

我想短路这个

        self.lineEdit_2.textChanged.connect(self.textChanged)
        self.lineEdit_3.textChanged.connect(self.textChanged)
        self.lineEdit_4.textChanged.connect(self.textChanged)
        self.lineEdit_5.textChanged.connect(self.textChanged)
        self.lineEdit_6.textChanged.connect(self.textChanged)
        self.lineEdit_7.textChanged.connect(self.textChanged)
        self.lineEdit_8.textChanged.connect(self.textChanged)

像这样

        for n in range(2, 8):  #check changes on the all lineEdit units
            self.lineEdit_n.textChanged.connect(self.textChanged)

或者像这样

        for n in range(2, 8):
            self.lineEdit_n.textChanged.connect(self.textChanged)
            getattr(self, 'lineEdit_n%' % n).textChanged.connect(self.textChanged)

但它不起作用 感谢您的关注

Answer 1

# Check changes on all lineEdit units
for n in range(2, 9):
    getattr(self, f"lineEdit_{n}").textChanged.connect(self.textChanged)