优化了重置绘图的代码

func/Module_artifact_label.py

@@ -300,7 +300,9 @@ class MainWindow_artifact_label(QMainWindow):
             del self.rectangles_ax0_patches
             del self.rectangles_ax1_patches
             del self.annotation_tableWidget
+            if self.ax0 is not None:
                 self.ax0.clear()
+            if self.ax1 is not None:
                 self.ax1.clear()
 
             # 释放资源

func/Module_detect_Jpeak.py

@@ -204,6 +204,7 @@ class MainWindow_detect_Jpeak(QMainWindow):
             QApplication.processEvents()
 
             # 清空画框
+            if self.ax0 is not None:
                 self.ax0.clear()
 
             # 释放资源

func/Module_detect_Rpeak.py

@@ -197,7 +197,9 @@ class MainWindow_detect_Rpeak(QMainWindow):
             QApplication.processEvents()
 
             # 清空画框
+            if self.ax0 is not None:
                 self.ax0.clear()
+            if self.ax1 is not None:
                 self.ax1.clear()
 
             # 释放资源

func/Module_label_check.py

@@ -340,7 +340,9 @@ class MainWindow_label_check(QMainWindow):
             del self.point_peak_original
             del self.point_peak_corrected
             del self.annotation_tableWidget
+            if self.ax0 is not None:
                 self.ax0.clear()
+            if self.ax1 is not None:
                 self.ax1.clear()
 
             # 释放资源

func/Module_preprocess.py

@@ -239,6 +239,7 @@ class MainWindow_preprocess(QMainWindow):
             QApplication.processEvents()
 
             # 清空画框
+            if self.ax0 is not None:
                 self.ax0.clear()
 
             # 释放资源