QT pyqt pyside2 QLabel 自动换行设置注意点

先看效果：

PySide2（QT5）的 QT Designer （我在 QT4 的 designer 中不可以直接看效果，可能需要设置什么）能直接在编辑器中看效果，Label设置如下：

注意：不要在同HorizonLayout中加弹簧，Label Horizontal 必须是 Expanding 的，很长的英文单词并不会像中文那样会分开换行，所以注意英文单词之间要用空格键隔开。

代码：

 1 # -*- coding: utf-8 -*-
 2 
 3 # Form implementation generated from reading ui file '.labelAutoMultiLine.ui'
 4 #
 5 # Created: Fri Nov 02 19:02:05 2018
 6 #      by: pyside-uic 0.2.15 running on PySide 1.2.4
 7 #
 8 # WARNING! All changes made in this file will be lost!
 9 
10 from PySide import QtCore, QtGui
11 
12 class Ui_Form(object):
13     def setupUi(self, Form):
14         Form.setObjectName("Form")
15         Form.resize(315, 86)
16         self.horizontalLayout = QtGui.QHBoxLayout(Form)
17         self.horizontalLayout.setObjectName("horizontalLayout")
18         self.pushButton = QtGui.QPushButton(Form)
19         sizePolicy = QtGui.QSizePolicy(QtGui.QSizePolicy.Preferred, QtGui.QSizePolicy.Preferred)
20         sizePolicy.setHorizontalStretch(0)
21         sizePolicy.setVerticalStretch(0)
22         sizePolicy.setHeightForWidth(self.pushButton.sizePolicy().hasHeightForWidth())
23         self.pushButton.setSizePolicy(sizePolicy)
24         self.pushButton.setMinimumSize(QtCore.QSize(64, 64))
25         self.pushButton.setMaximumSize(QtCore.QSize(64, 64))
26         self.pushButton.setObjectName("pushButton")
27         self.horizontalLayout.addWidget(self.pushButton)
28         self.label = QtGui.QLabel(Form)
29         sizePolicy = QtGui.QSizePolicy(QtGui.QSizePolicy.Expanding, QtGui.QSizePolicy.Preferred)
30         sizePolicy.setHorizontalStretch(0)
31         sizePolicy.setVerticalStretch(0)
32         sizePolicy.setHeightForWidth(self.label.sizePolicy().hasHeightForWidth())
33         self.label.setSizePolicy(sizePolicy)
34         self.label.setWordWrap(True)
35         self.label.setObjectName("label")
36         self.horizontalLayout.addWidget(self.label)
37 
38         self.retranslateUi(Form)
39         QtCore.QMetaObject.connectSlotsByName(Form)
40 
41     def retranslateUi(self, Form):
42         Form.setWindowTitle(QtGui.QApplication.translate("Form", "Form", None, QtGui.QApplication.UnicodeUTF8))
43         self.pushButton.setText(QtGui.QApplication.translate("Form", "Button", None, QtGui.QApplication.UnicodeUTF8))
44         self.label.setText(QtGui.QApplication.translate("Form", "TextLabel", None, QtGui.QApplication.UnicodeUTF8))

labelAutoMultiLine_ui_pyside.py

 1 # -*- coding: utf-8 -*-
 2 import sys
 3 from PySide import QtCore, QtGui
 4 import labelAutoMultiLine_ui_pyside as ui
 5 
 6 class TestWindow(QtGui.QWidget, ui.Ui_Form):
 7     def __init__(self, parent = None):
 8         super(TestWindow, self).__init__(parent)
 9         self.setupUi(self)
10         
11         self.label.setWordWrap(True)    #也可以在qt designer中对label的属性设置
12         self.label.setText(u'测试Label自动换行，SDFSDF SFSDF 啊啊啊啊啊啊')      # 如果在designer中设置好很长的text，在代码中不设置，则可能不会自动换行
13         
14 def main():
15     app = QtGui.QApplication(sys.argv)
16     win = TestWindow()
17     win.show()
18     sys.exit(app.exec_())
19     
20 if __name__ == '__main__':
21     main()

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原文地址：https://www.cnblogs.com/ibingshan/p/9898058.html