1.主要用到 QFileDialog 方法打开本地文件
2.界面
打开前：
打开后：
3. 代码
# -*- coding: utf-8 -*-import sysfrom PyQt5 import QtWidgets, QtCore, QtGuifrom PyQt5.QtGui import *from PyQt5.QtWidgets import *from PyQt5.QtCore import *class picture(QWidget):def __init__(self):super(picture, self).__init__()self.resize(600, 400)self.setWindowTitle("label显示图片")self.label = QLabel(self)self.label.setText(" 显示图片")self.label.setFixedSize(300, 200)self.label.move(160, 160)self.label.setStyleSheet("QLabel{background:white;}""QLabel{color:rgb(300,300,300,120);font-size:10px;font-weight:bold;font-family:宋体;}")btn = QPushButton(self)btn.setText("打开图片")btn.move(10, 30)btn.clicked.connect(self.openimage)def openimage(self):imgName, imgType = QFileDialog.getOpenFileName(self, "打开图片", "", "*.jpg;;*.png;;All Files(*)")jpg = QtGui.QPixmap(imgName).scaled(self.label.width(), self.label.height())self.label.setPixmap(jpg)if __name__ == "__main__":app = QtWidgets.QApplication(sys.argv)my = picture()my.show()sys.exit(app.exec_())
