我是PyQt的初学者 . 我想用简单的菜单和带图像的标签创建窗口 . 我搜索了如何创建菜单以及如何在标签中显示图像,但不能将这两件事结合起来 .
菜单代码(图片不显示):
import sys
from PyQt5 import QtCore, QtWidgets
from PyQt5.QtWidgets import *
from PyQt5.QtGui import *
import cv2
class MainWindow(QMainWindow):
def __init__(self):
QMainWindow.__init__(self)
label = QLabel(self)
pixmap = QPixmap('./liver.bmp')
label.setPixmap(pixmap)
self.resize(pixmap.width(), pixmap.height())
# Create new action
openAction = QAction(QIcon('open.png'), '&Open', self)
openAction.setShortcut('Ctrl+O')
openAction.setStatusTip('Open document')
openAction.triggered.connect(self.openCall)
# Create menu bar and add action
menuBar = self.menuBar()
fileMenu = menuBar.addMenu('&File')
fileMenu.addAction(openAction)
def openCall(self):
pixmap = QPixmap('./default.png')
label.setPixmap(pixmap)
if __name__ == "__main__":
app = QtWidgets.QApplication(sys.argv)
mainWin = MainWindow()
mainWin.show()
sys.exit( app.exec_() )
screenshot(image doesn't display)
不带菜单的代码显示图像:
import os
import sys
from PyQt5.QtCore import *
from PyQt5.QtGui import *
from PyQt5.QtWidgets import *
import cv2
class ImageViewer(QWidget):
def __init__(self):
QWidget.__init__(self)
self.setup_ui()
def setup_ui(self):
self.image_label = QLabel()
self.image_label.setPixmap(QPixmap('./default.png'))
self.main_layout = QVBoxLayout() # adding widgets to layot
self.main_layout.addWidget(self.image_label)
self.setLayout(self.main_layout) # set layot
if __name__ == "__main__":
app = QApplication(sys.argv)
viewer = ImageViewer()
viewer.show()
app.exec_()
如何结合这两件事????
1 回答
将self添加到所有标签变量,它可以工作,