PyQt5--QColorDiaglog

# -*- coding:utf-8 -*-
'''
Created on Sep 17, 2018

@author: SaShuangYiBing

Comment: 
'''
import sys
from PyQt5.QtGui import QColor
from PyQt5.QtWidgets import QApplication,QWidget,QColorDialog,QPushButton,QFrame

class New_test(QWidget):
    def __init__(self):
        super().__init__()
        self.initUI()
    
    def initUI(self):
        col = QColor(0,0,0)
        
        btn = QPushButton('Diaglog',self)
        btn.move(20,20)
        btn.clicked.connect(self.showdiaglog)
        
        self.frm = QFrame(self)
        self.frm.setStyleSheet('QWidget {background-color:%s}' %col.name())
        self.frm.setGeometry(130,22,100,100)
        self.setGeometry(300,300,250,180)
        self.setWindowTitle('Color Diaglog')
        self.show()
        
    def showdiaglog(self):
        col = QColorDialog.getColor()
        
        if col.isValid():
            self.frm.setStyleSheet('QWidget {background-color:%s}' %col.name())
            
if __name__ == '__main__':
    app = QApplication(sys.argv)
    ex = New_test()
    sys.exit(app.exec_())