如何使标签中的文本在一定长度后转到下一行

Question

我正在 PyQt5/Python 3 中为学校的一个项目开发一个小 GUI，但我遇到了文本被截断的问题。使用 label.adjustSize() 并不能解决它，我想不出任何其他方法来解决它。我想要它，以便通过创建一个新标签或使用相同的标签，标签进入一个新行，这将是更可取的。我将截断的字符数是 62，所以我只希望在标签文本超过 62 个字符时创建新行。

问题截图在这里

标签代码截图在这里

Answer 1

除了将QLabel的wordWrap 属性设置为True之外，您还必须使用布局以便QLabel自动调整QLabel的宽度：

from PyQt5 import QtCore, QtWidgets

class Widget(QtWidgets.QWidget):
    def __init__(self, parent=None):
        super(Widget, self).__init__(parent)
        self.label_content = QtWidgets.QLabel(
            wordWrap=True,
            alignment=QtCore.Qt.AlignLeft|QtCore.Qt.AlignTop
        )
        self.button_view = QtWidgets.QPushButton("View Database")
        self.input_label = QtWidgets.QLabel("Input:") 
        self.lineedit = QtWidgets.QLineEdit()
        self.ask_button = QtWidgets.QPushButton("Ask Question")

        grid_layout = QtWidgets.QGridLayout(self)
        grid_layout.addWidget(self.label_content)
        grid_layout.addWidget(self.button_view, 0, 1, alignment=QtCore.Qt.AlignTop)
        grid_layout.addWidget(self.input_label, 1, 0, 1, 2)
        grid_layout.addWidget(self.lineedit, 2, 0)
        grid_layout.addWidget(self.ask_button, 2, 1)
        grid_layout.setRowStretch(0, 1)

        self.label_content.setText("Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nulla sollicitudin aliquet mauris quis fringilla. Vivamus scelerisque mauris turpis, a imperdiet purus varius eget. Suspendisse pretium est id augue accumsan, vel luctus purus luctus. In hendrerit, turpis ac ultricies volutpat, urna enim hendrerit nisl, a sagittis arcu justo sit amet elit. Aenean bibendum, lacus nec commodo consequat, tortor lectus pulvinar velit, eu ultrices sem felis eget velit. Curabitur id ipsum sit amet tellus euismod mollis. Vivamus et imperdiet ligula. Donec malesuada fermentum felis, at egestas justo ultrices ac. In quis risus ut odio mattis commodo vel sit amet mauris. Vestibulum rutrum ligula tellus, quis faucibus urna imperdiet at. Praesent fermentum condimentum leo. Phasellus quis lacus sapien. Duis viverra sodales aliquet. Sed volutpat non nibh tincidunt blandit. Sed elementum sem at ligula pharetra hendrerit. Donec vel scelerisque mauris. ")

if __name__ == '__main__':
    import sys
    app = QtWidgets.QApplication.instance()
    if app is None:
        app = QtWidgets.QApplication(sys.argv)
    w = Widget()
    w.resize(640, 480)
    w.show()
    sys.exit(app.exec_())

如何使标签中的文本在一定长度后转到下一行

How to make text in a label go onto the next line after it is a certain length

python

pyqt

python-3.x

qlabel

pyqt5