调整PyQt5 QTableview列的大小

import sys
from PyQt5.QtWidgets import QApplication, QMainWindow, QTableView, QHeaderView, QVBoxLayout, QWidget
from PyQt5.QtGui import QStandardItemModel, QStandardItem

class MainWindow(QMainWindow):
    def __init__(self):
        super().__init__()

        # 创建表格模型
        model = QStandardItemModel()
        model.setColumnCount(3)
        model.setHeaderData(0, Qt.Horizontal, "姓名")
        model.setHeaderData(1, Qt.Horizontal, "年龄")
        model.setHeaderData(2, Qt.Horizontal, "性别")

        # 添加数据
        data = [
            ["张三", "25", "男"],
            ["李四", "30", "女"],
            ["王五", "28", "男"]
        ]
        for row in range(len(data)):
            for col in range(len(data[row])):
                item = QStandardItem(data[row][col])
                model.setItem(row, col, item)

        # 创建表格视图
        table_view = QTableView()
        table_view.setModel(model)

        # 设置列宽自适应内容
        table_view.resizeColumnsToContents()

        # 设置表头自适应内容
        header = table_view.horizontalHeader()
        header.setSectionResizeMode(QHeaderView.ResizeToContents)

        # 创建布局并添加表格视图
        layout = QVBoxLayout()
        layout.addWidget(table_view)

        # 创建主窗口并设置布局
        central_widget = QWidget()
        central_widget.setLayout(layout)
        self.setCentralWidget(central_widget)

if __name__ == "__main__":
    app = QApplication(sys.argv)
    window = MainWindow()
    window.show()
    sys.exit(app.exec_())