import sys
from PySide6 import QtCore, QtGui, QtWidgets
from PySide6.QtUiTools import QUiLoader
from pathlib import Path
from PySide6.QtWidgets import QFileDialog, QMainWindow, QMessageBox, QLabel
import pandas as pd

class MainWindows(QMainWindow):
    UI_FILE = 'ui/main_window.ui'
    def __init__(self):
        super(MainWindows, self).__init__()

        self.ui = QUiLoader().load(self.UI_FILE)


        self.ui.SelectFileBtn.clicked.connect(self.select_excel_file)

    # 点击选择文件按钮后，弹出选择EXCEL窗口。
    def select_excel_file(self):
        # 弹窗标题
        caption = "请选择EXCEL文件"
        # 起始目录
        start_dir = str(Path.home())
        # 文件类型过滤器
        filters = "Excel 文件 (*.xlsx *.xls);;所有文件 (*.*)"
        # 选择EXCEL文件
        file_path, _ = QFileDialog.getOpenFileName(None, caption, start_dir, filters)

        if not file_path:
            return

        self.ui.FileNameEdt.setText(str(file_path))

        #使用pandas读取EXCEL文件
        try:
            # 读取第一行表头
            df = pd.read_excel(file_path, nrows=0) # 不加载数据，只加载列名
            headers = list(df.columns)
        except Exception as e:
            QMessageBox.critical(self,"错误",f"读取文件失败：\n{e}")
            return
        #动态创建标签
        for col in headers:
            lbl = QLabel(f"· {col}")
            self.ui.addWidget()

if __name__ == '__main__':
    UI_FILE = "uv/main_window.ui"
    app = QtWidgets.QApplication(sys.argv)
    # 设置应用程序样式
    app.setStyle("Fusion")

    main = MainWindows()
    main.ui.show()
    sys.exit(app.exec())