完成了GC示例文件的下载

Back/GC/GC.py

     finally:
         conn.close()
 
+
 # 读取指定单元格的数据(编辑)
 def read_cells_from_excel1(list1):
     cell_values = {}
     cell_values['I1'] = list1[0][6]
     return cell_values
 
-#获取最后一行有数字的单元格值(编辑)
-def get_last_numeric_cell_value1(list1,index):
+
+# 获取最后一行有数字的单元格值(编辑)
+def get_last_numeric_cell_value1(list1, index):
     ii = 0
     while ii < len(list1):
         if list1[ii][index] == '' or list1[ii][index] == ' ' or list1[ii][index] == None:
             ii = ii + 1
     return ii
 
+
 # 计算指定列中数值型数据的总和（编辑）
-def calculate_column_sum1(list1,index):
+def calculate_column_sum1(list1, index):
     sum = 0
     for li in list1:
         if li[index] == '' or li[index] == ' ' or li[index] == None:
             sum = sum + float(li[index])
     return sum
 
+
 # 遍历获取序号的数据(修改数据)
 def get_data_from_excel1(list1):
     data = []

Back/GC/GCExport.py

             QMessageBox.critical(ui, '错误', '请确认文件没有被其他程序（如Excel、文本编辑器等）打开。')
         else:
             QMessageBox.critical(ui, '错误', f'导出初始数据过程中发生错误: {str(e)}')
+            print(e)
+
+
+def export_example_data(ui, utf_en, db_path, export_folder):
+    try:
+        # 解码 utf_en
+        decoded_utf_en = utf_en.decode('utf-8') if isinstance(utf_en, bytes) else utf_en
+
+        # 创建一个新的 Excel 工作簿
+        wb = Workbook()
+        ws = wb.active
+
+        # 合并指定的单元格
+        merge_cells = ['A1:B1', 'D1:E1', 'F1:G1', 'I1:J1']
+        for cell_range in merge_cells:
+            ws.merge_cells(cell_range)
+
+        # 设置合并单元格后的居中对齐
+        for cell_range in merge_cells:
+            cell = ws[cell_range.split(':')[0]]
+            cell.alignment = Alignment(horizontal='center', vertical='center')
+        # 连接数据库
+        conn = sqlite3.connect(db_path)
+        cursor = conn.cursor()
+
+        # 查询 GC_Input_Param 表获取 ObservationLevel, Last_ResultName, New_ResultName, Ms_Station 字段
+        query_observation_level = "SELECT ObservationLevel, Last_ResultName, New_ResultName, Ms_Station FROM GC_Input_Param WHERE TableName=?"
+        cursor.execute(query_observation_level, (utf_en,))
+        result = cursor.fetchone()
+        if result:
+            observation_level, last_result_name, new_result_name, ms_station = result
+        else:
+            observation_level = "未找到"
+            last_result_name = "未找到"
+            new_result_name = "未找到"
+            ms_station = "未找到"
+
+        # 填写表头信息
+        ws['A1'] = '观测等级'
+        ws['C1'] = observation_level  # 将 ObservationLevel 写入 C1 单元格
+        ws['A2'] = '序号'
+        ws['B2'] = '起点'
+        ws['C2'] = '终点'
+        ws['D2'] = '高差（m）'
+        ws['E2'] = '路线长（km）'
+        ws['F1'] = '测站全中误差（mm）'
+        ws['F2'] = '序号'
+        ws['G2'] = '起点'
+        ws['H2'] = '终点'
+        ws['I2'] = '高差（m）'
+        ws['J2'] = '路线长（km）'
+
+        # 写入 Last_ResultName, New_ResultName, Ms_Station 到相应的单元格
+        ws['D1'] = last_result_name
+        ws['I1'] = new_result_name
+        ws['H1'] = ms_station
+
+        # 设置 H1 单元格的数值格式为保留两位小数
+        ws['H1'].number_format = '0.00'
+
+        # 连接数据库
+        conn = sqlite3.connect(db_path)
+        cursor = conn.cursor()
+
+        # 查询数据库表为DataFrame，添加 TableName 条件
+        query = "SELECT * FROM GC_Input_Point WHERE TableName=?"
+        cursor.execute(query, (utf_en,))
+        rows = cursor.fetchall()
+
+        # 获取列名
+        column_names = [description[0] for description in cursor.description]
+
+        # 定义需要的列索引
+        last_id_index = column_names.index('Last_ID')
+        last_spname_index = column_names.index('Last_SPName')
+        last_epname_index = column_names.index('Last_EPName')
+        last_hdiff_index = column_names.index('Last_HDiff')
+        last_rlen_index = column_names.index('Last_RLen')
+        new_id_index = column_names.index('New_ID')
+        new_spname_index = column_names.index('New_SPName')
+        new_epname_index = column_names.index('New_EPName')
+        new_hdiff_index = column_names.index('New_HDiff')
+        new_rlen_index = column_names.index('New_RLen')
+
+        # 填充数据到Excel
+        for idx, row in enumerate(rows, start=3):
+            ws.cell(row=idx, column=1, value=row[last_id_index])
+            ws.cell(row=idx, column=2, value=row[last_spname_index])
+            ws.cell(row=idx, column=3, value=row[last_epname_index])
+            ws.cell(row=idx, column=4, value=row[last_hdiff_index])
+            ws.cell(row=idx, column=5, value=row[last_rlen_index])
+            ws.cell(row=idx, column=6, value=row[new_id_index])
+            ws.cell(row=idx, column=7, value=row[new_spname_index])
+            ws.cell(row=idx, column=8, value=row[new_epname_index])
+            ws.cell(row=idx, column=9, value=row[new_hdiff_index])
+            ws.cell(row=idx, column=10, value=row[new_rlen_index])
+
+            # 设置 D, E, I, J 列为强制保留六位小数
+            ws.cell(row=idx, column=4).number_format = '0.000000'
+            ws.cell(row=idx, column=5).number_format = '0.000000'
+            ws.cell(row=idx, column=9).number_format = '0.000000'
+            ws.cell(row=idx, column=10).number_format = '0.000000'
+        # 设置B,C,G,H的列宽为9.25
+        ws.column_dimensions['B'].width = 9.25
+        ws.column_dimensions['C'].width = 9.25
+        ws.column_dimensions['G'].width = 9.25
+        ws.column_dimensions['H'].width = 9.25
+
+        # 设置 D, E, I, J 列的列宽为11.5
+        ws.column_dimensions['D'].width = 11.5
+        ws.column_dimensions['E'].width = 11.5
+        ws.column_dimensions['I'].width = 11.5
+        ws.column_dimensions['J'].width = 11.5
+
+        # 设置文件名
+        excel_filename = f"{os.path.splitext(decoded_utf_en)[0]}.xlsx"
+        excel_filepath = os.path.join(export_folder, excel_filename)
+
+        # 保存 Excel 文件
+        wb.save(excel_filepath)
+
+        QMessageBox.information(ui, '成功', f'示例文件已成功导出到 {export_folder}')
+    except Exception as e:
+        if isinstance(e, PermissionError) or (isinstance(e, OSError) and e.errno == 13):
+            QMessageBox.critical(ui, '错误', '请确认文件没有被其他程序（如Excel、文本编辑器等）打开。')
+        else:
+            QMessageBox.critical(ui, '错误', f'导出初始数据过程中发生错误: {str(e)}')
+            print(e)
+
 
 def process_utf_en(utf_en):
     # 确保 utf_en 是字节字符串
     export_initial_data(ui, utf_en, db_path, export_folder)
 
 
+def main_function_example(ui, utf_en, db_path):
+
+    # 获取应用的安装目录
+    app_install_dir = os.path.dirname(os.path.abspath(__file__))  # 假设脚本文件位于应用的安装目录下
+    example_folder = os.path.join(app_install_dir, 'Example')
+
+    # 如果 Example 文件夹不存在，则创建它
+    if not os.path.exists(example_folder):
+        os.makedirs(example_folder)
+
+    # 调用导出初始数据函数
+    export_example_data(ui, utf_en, db_path, example_folder)
+
 def main_function_result(ui, utf_en, db_path):
     # 处理 utf_en
     utf_en = process_utf_en(utf_en)

Front/main.py

 import platform
 
 import Back.Program_Run.database_operations
+from Back.GC.GCExport import main_function_example
 # IMPORT / GUI AND MODULES AND WIDGETS
 # ///////////////////////////////////////////////////////////////
 from modules import *
         self.ui.resultTableView1.setEditTriggers(QTableView.EditTrigger.AllEditTriggers)
 
 
+    def on_download_3_clicked(self):
+        # 获取应用的安装目录
+        app_install_dir = os.path.dirname(os.path.abspath(__file__))
+        # 构建数据库路径
+        db_path = os.path.join(app_install_dir, '..',  'SQL', 'DataBase.db')
+        db_path = os.path.abspath(db_path)
+        file_name = "水准测段高差稳定计算示例文件.xlsx"
+        utf_en = file_name.encode('utf-8')
+        print(db_path)
+        # 调用main_function_example函数
+        main_function_example(self, utf_en, db_path)
+
+
 
 
 

Front/modules/ui_main.py

     Data_in_Cell2
 from Back.Program_Run.database_operations import create_database_and_tables
 from Back.Program_Run.file_system_watching import ComboBoxUpdater
+from Back.GC.GCExport import main_function_example
+
 from watchdog.observers import Observer
 
 from .resources_rc import *
         # 下载3
         self.download_3 = QPushButton(self.row_3)
         self.download_3.setObjectName(u"download_3")
+        self.download_3.clicked.connect(self.main_window.on_download_3_clicked)
 
         self.verticalLayout_22.addWidget(self.download_3)
 
         icon6.addFile(u":/icons/images/icons/3.png", QSize(), QIcon.Mode.Normal, QIcon.State.Off)
         self.View.addTab(self.printTable1, icon6, "")
 
-
         self.inputTable1 = QWidget()
         self.inputTable1.setObjectName(u"inputTable1")
         # self.inputTable.setCursor(QCursor(Qt.CursorShape.UpArrowCursor))
         # self.reconTableView1.setSortingEnabled(True)
         # self.inputTableView1.setSortingEnabled(True)
 
-        #都不能编辑
+        # 都不能编辑
         self.resultTableView.setEditTriggers(QTableView.EditTrigger.NoEditTriggers)
         self.resultTableView1.setEditTriggers(QTableView.EditTrigger.NoEditTriggers)
         self.reconTableView.setEditTriggers(QTableView.EditTrigger.NoEditTriggers)
         self.reconTableView1.setEditTriggers(QTableView.EditTrigger.NoEditTriggers)
         self.inputTableView1.setEditTriggers(QTableView.EditTrigger.NoEditTriggers)
 
-
         self.formLayout_3.setLayout(0, QFormLayout.FieldRole, self.verticalLayout_30)
 
         self.stackedWidget.addWidget(self.datainfo)
         self.btn_message.setText(QCoreApplication.translate("MainWindow", u"\u5207\u6362\u4e3b\u9898", None))
         self.creditsLabel.setText(QCoreApplication.translate("MainWindow", u"\u7248\u6743\u4fe1\u606f", None))
         self.version.setText(QCoreApplication.translate("MainWindow", u"v1.0.0", None))
+