用python库PyQt5改变主界面颜色

Posted 2023-03-30

【中文标题】用python库PyQt5改变主界面颜色

【英文标题】：Change the color of the main interface with the python library PyQt5

【发布时间】：2018-10-07 06:27:04

【问题描述】：

如果是Qwidget类型，下面的代码会改变界面的颜色。如果是Qmainwidow，我可以改变界面颜色吗？感谢您的帮助

import sys
from PyQt5.QtWidgets import (QApplication, QMainWindow, QWidget, QVBoxLayout)

# class Wind(QMainWindow):  # this what i need
class Wind(QWidget):   
    def __init__(self):      #__init__ method
        super(Wind, self).__init__()
        self.scaleFactor = 0.0

        self.widget = QWidget(self)
        layout = QVBoxLayout(self)
        layout.addWidget(self.widget)

        self.widget.setStyleSheet("""
                .QWidget 
                    background-color: rgb(0, 200, 0);
                    
                """)

        self.setWindowTitle("first-window")
        self.resize(500, 400)


if __name__ == '__main__':

    app = QApplication(sys.argv)
    imageViewer = Wind()
    imageViewer.show()
    sys.exit(app.exec_())

【参考方案1】：

这似乎是正确显示的代码。

from PyQt5.QtWidgets import (QApplication, QMainWindow, QWidget, QVBoxLayout) 
import sys

#class Wind(QWidget): #Class Name

class Wind(QMainWindow): # Class Name
    def __init__(self):      #__init__ method
        super(Wind, self).__init__()
        self.scaleFactor = 0.0

        self.widget = QWidget(self)
        layout = QVBoxLayout(self)
        layout.addWidget(self.widget)

        self.widget.setStyleSheet("""
                .QWidget 
                    background-color: rgb(0, 200, 0);
                    
                """)

        self.setWindowTitle("first-window")
        self.resize(500, 400)
if __name__ == '__main__':
    app = QApplication(sys.argv)
    imageViewer = Wind()
    imageViewer.show()
    sys.exit(app.exec_())