1102-02-QSlider.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-
# @Time    : 2017/11/2 下午1:14
# @Author  : hukezhu
# @Site    : 
# @File    : 1102-02-QSlider.py
# @Software: PyCharm



import sys
from PyQt5.QtWidgets import (QWidget, QSlider,QLabel,QApplication)
from PyQt5.QtCore import Qt
from PyQt5.QtGui import QPixmap


class Example(QWidget):
    def __init__(self):
        super().__init__()

        self.initUI()


    def initUI(self):

        sld = QSlider(Qt.Horizontal,self)
        sld.setFocusPolicy(Qt.NoFocus)
        sld.setGeometry(30,40,100,30)
        sld.valueChanged[int].connect(self.changeValue)

        self.label = QLabel(self)
        self.label.setPixmap(QPixmap('mute.png'))
        self.label.setGeometry(160,40,80,30)

        self.setGeometry(300,300,280,170)
        self.setWindowTitle('QSlider')
        self.show()

    def changeValue(self,value):
        if value == 0:
            self.label.setPixmap(QPixmap('mute.png'))
        elif value > 0 and value <= 30:
            self.label.setPixmap(QPixmap('min.png'))
        elif value > 30 and value < 80:
            self.label.setPixmap(QPixmap('med.png'))
        else:
            self.label.setPixmap(QPixmap('max.png'))



if __name__ == '__main__':

    app = QApplication(sys.argv)
    ex = Example()
    sys.exit(app.exec_())