优化了部分代码结构

func/Module_mainwindow.py

@@ -366,6 +366,21 @@ class MainWindow(QMainWindow, Ui_Signal_Label):
                 path.mkdir(parents=True, exist_ok=True)
 
     def set_dark_mode_status(self):
+        module_list = [
+            self,
+            self.approximately_align,
+            self.preprocess,
+            self.detect_Jpeak,
+            self.detect_Rpeak,
+            self.label_check,
+            self.precisely_align,
+            self.cut_PSG,
+            self.artifact_label,
+            self.bcg_quality_label,
+            self.resp_quality_label,
+            self.SA_label
+        ]
+
         try:
             if self.ui.checkBox_darkmode.isChecked():
                 QApplication.styleHints().setColorScheme(Qt.ColorScheme.Dark)
@@ -374,3 +389,22 @@ class MainWindow(QMainWindow, Ui_Signal_Label):
         except Exception as e:
             PublicFunc.msgbox_output(self, Constants.MAINWINDOW_DARKMODE_FAILURE + "。" + format_exc(), Constants.MSGBOX_TYPE_ERROR)
             return
+
+        for module in module_list:
+            try:
+                if module is not None:
+                    MainWindow.update_widget_style(module)
+            except RuntimeError:
+                pass
+
+    @staticmethod
+    def update_widget_style(mainWindow):
+        all_widgets = mainWindow.centralWidget().findChildren(QWidget)
+        # 迭代所有部件
+        for widget in all_widgets:
+            try:
+                widget.style().unpolish(widget)
+                widget.style().polish(widget)
+                widget.update()
+            except TypeError:
+                pass