PyQt5基础学习-QTableWidget().sortItems(对表格某一列进行排序) 1.Qt.DescendingOrder(降序) 2.Qt.AscendingOrder(升序)

使用QTableWidget().sortItems()对某一列进行升序或者降序, 使用按钮进行排序，原来是升序点击完以后就是降序

"""
按列排序
1. 按哪一列排序
2. 排序类型: 升序或降序

sortItems(columnIndex, orderType)

"""

import sys
from PyQt5.QtWidgets import *
from PyQt5 import QtCore
from PyQt5.QtGui import QColor, QBrush
from PyQt5 import QtWidgets, Qt
from PyQt5.QtGui import QFont
from PyQt5.Qt import *

class ColumnSort(QWidget):
    def __init__(self):
        super(ColumnSort, self).__init__()
        self.initUI()

    def initUI(self):
        self.setWindowTitle("按列排序")
        self.resize(430, 230)

        layout = QVBoxLayout()
        self.tableWidget = QTableWidget()
        self.tableWidget.setRowCount(4)
        self.tableWidget.setColumnCount(3)
        layout.addWidget(self.tableWidget)

        self.tableWidget.setHorizontalHeaderLabels(['姓名', '性别', '体重(kg)'])

        newItem = QTableWidgetItem("张三")
        self.tableWidget.setItem(0, 0, newItem)

        newItem = QTableWidgetItem("男")
        self.tableWidget.setItem(0, 1, newItem)

        newItem = QTableWidgetItem("165")
        self.tableWidget.setItem(0, 2, newItem)

        newItem = QTableWidgetItem("李四")
        self.tableWidget.setItem(1, 0, newItem)

        newItem = QTableWidgetItem("女")
        self.tableWidget.setItem(1, 1, newItem)

        newItem = QTableWidgetItem("160")
        self.tableWidget.setItem(1, 2, newItem)

        newItem = QTableWidgetItem("王五")
        self.tableWidget.setItem(2, 0, newItem)

        newItem = QTableWidgetItem("女")
        self.tableWidget.setItem(2, 1, newItem)

        newItem = QTableWidgetItem("170")
        self.tableWidget.setItem(2, 2, newItem)

        self.button = QPushButton('排序')
        self.button.clicked.connect(self.order)
        layout.addWidget(self.button)

        self.orderType = Qt.DescendingOrder
        self.setLayout(layout)

    def order(self):
        if self.orderType == Qt.DescendingOrder:
            self.orderType = Qt.AscendingOrder
        else:
            self.orderType = Qt.DescendingOrder
        #对第三列进行升序或者降序操作
        self.tableWidget.sortItems(2, self.orderType)


if __name__ == "__main__":
    app = QtWidgets.QApplication(sys.argv)
    main = ColumnSort()
    main.show()

    sys.exit(app.exec_())