pyqt5 从本地选择图片并显示在label上

清疚 2021-07-26 20:21 503阅读 0赞

**1.主要用到 QFileDialog 方法打开本地文件**  
**2.界面**  
打开前：

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTI1Nzc0NzQ_size_16_color_FFFFFF_t_70]  
**打开后：**

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTI1Nzc0NzQ_size_16_color_FFFFFF_t_70 1]  
**3. 代码**

# -*- coding: utf-8 -*-
    import sys
    from PyQt5 import QtWidgets, QtCore, QtGui
    from 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_())

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTI1Nzc0NzQ_size_16_color_FFFFFF_t_70]: /images/20210726/0dc53f4130ee4d30aaa7c0b7b28aee7d.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTI1Nzc0NzQ_size_16_color_FFFFFF_t_70 1]: /images/20210726/f50858ab084c4135b7ecc5534ba280f3.png