效果图：

双击左侧列表加入右侧列表，右侧列表双击删除节点。

代码：

import sys

from PyQt5.QtGui import QPixmap

from PyQt5.QtWidgets import QApplication, QWidget, QLabel, QListWidget, QListWidgetItem, QHBoxLayout

class Demo(QWidget):

def __init__(self):

super(Demo, self).__init__()

self.pic_label = QLabel(self) # 1

self.pic_label.setPixmap(QPixmap(‘arrow.png‘))

self.listwidget_1 = QListWidget(self) # 2

self.listwidget_2 = QListWidget(self)

self.listwidget_1.doubleClicked.connect(lambda: self.change_func(self.listwidget_1))

self.listwidget_2.doubleClicked.connect(lambda: self.change_func(self.listwidget_2))

for i in range(6): # 3

text = ‘Item {}‘.format(i)

self.item = QListWidgetItem(text)

self.listwidget_1.addItem(self.item)

self.item_6 = QListWidgetItem(‘Item 6‘, self.listwidget_1) # 4

self.listwidget_1.addItem(‘Item 7‘) # 5

str_list = [‘Item 9‘, ‘Item 10‘]

self.listwidget_1.addItems(str_list)

self.item_8 = QListWidgetItem(‘Item 8‘) # 6

self.listwidget_1.insertItem(8, self.item_8)

# self.listwidget_1.insertItem(8, ‘Item 8‘)

self.h_layout = QHBoxLayout()

self.h_layout.addWidget(self.listwidget_1)

self.h_layout.addWidget(self.pic_label)

self.h_layout.addWidget(self.listwidget_2)

self.setLayout(self.h_layout)

def change_func(self, listwidget): # 7

if listwidget == self.listwidget_1:

item = QListWidgetItem(self.listwidget_1.currentItem())

self.listwidget_2.addItem(item)

print(self.listwidget_2.count())

else:

self.listwidget_2.takeItem(self.listwidget_2.currentRow())

print(self.listwidget_2.count())

if __name__ == ‘__main__‘:

app = QApplication(sys.argv)

demo = Demo()

demo.show()

sys.exit(app.exec_())

告辞

原文：https://www.cnblogs.com/wohuiyijiu/p/12809077.html