diff --git a/func/Module_mainwindow.py b/func/Module_mainwindow.py
index 42c033c..3fe6963 100644
--- a/func/Module_mainwindow.py
+++ b/func/Module_mainwindow.py
@@ -66,6 +66,7 @@ class MainWindow(QMainWindow, Ui_Signal_Label):
     @staticmethod
     def __read_config__():
         if not Path(ConfigParams.PUBLIC_CONFIG_FILE_PATH).exists():
+            Path(ConfigParams.PUBLIC_CONFIG_FILE_PATH).parent.mkdir(parents=True, exist_ok=True)
             with open(ConfigParams.PUBLIC_CONFIG_FILE_PATH, "w") as f:
                 dump(ConfigParams.PUBLIC_CONFIG_NEW_CONTENT, f)
 
@@ -95,60 +96,90 @@ class MainWindow(QMainWindow, Ui_Signal_Label):
     def __slot_btn_approximately_align__(self):
         self.approximately_align = MainWindow_approximately_align()
         root_path = self.ui.plainTextEdit_root_path.toPlainText()
-        sampID = int(self.ui.comboBox_sampID.currentText())
-        self.approximately_align.show(root_path, sampID)
+        sampID = self.ui.comboBox_sampID.currentText()
+        if not self.check_root_path():
+            return
+        if not self.check_sampID():
+            return
+        self.approximately_align.show(root_path, int(sampID))
 
     def __slot_btn_preprocess__(self):
         self.preprocess = MainWindow_preprocess()
 
         sender = self.sender()
         root_path = self.ui.plainTextEdit_root_path.toPlainText()
-        sampID = int(self.ui.comboBox_sampID.currentText())
+        sampID = self.ui.comboBox_sampID.currentText()
         if sender == self.ui.pushButton_preprocess_BCG:
             mode = "BCG"
         elif sender == self.ui.pushButton_preprocess_ECG:
             mode = "ECG"
         else:
             raise ValueError("模式不存在")
-        self.preprocess.show(mode, root_path, sampID)
+        if not self.check_root_path():
+            return
+        if not self.check_sampID():
+            return
+        self.preprocess.show(mode, root_path, int(sampID))
 
     def __slot_btn_detect_Jpeak__(self):
         self.detect_Jpeak = MainWindow_detect_Jpeak()
         root_path = self.ui.plainTextEdit_root_path.toPlainText()
-        sampID = int(self.ui.comboBox_sampID.currentText())
-        self.detect_Jpeak.show(root_path, sampID)
+        sampID = self.ui.comboBox_sampID.currentText()
+        if not self.check_root_path():
+            return
+        if not self.check_sampID():
+            return
+        self.detect_Jpeak.show(root_path, int(sampID))
 
     def __slot_btn_detect_Rpeak__(self):
         self.detect_Rpeak = MainWindow_detect_Rpeak()
         root_path = self.ui.plainTextEdit_root_path.toPlainText()
-        sampID = int(self.ui.comboBox_sampID.currentText())
-        self.detect_Rpeak.show(root_path, sampID)
+        sampID = self.ui.comboBox_sampID.currentText()
+        if not self.check_root_path():
+            return
+        if not self.check_sampID():
+            return
+        self.detect_Rpeak.show(root_path, int(sampID))
 
     def __slot_btn_label_check__(self):
         self.label_check = MainWindow_label_check()
 
         sender = self.sender()
         root_path = self.ui.plainTextEdit_root_path.toPlainText()
-        sampID = int(self.ui.comboBox_sampID.currentText())
+        sampID = self.ui.comboBox_sampID.currentText()
+
+        if not self.check_root_path():
+            return
+        if not self.check_sampID():
+            return
+
         if sender == self.ui.pushButton_label_check_BCG:
             mode = "BCG"
         elif sender == self.ui.pushButton_label_check_ECG:
             mode = "ECG"
         else:
             raise ValueError("模式不存在")
-        self.label_check.show(mode, root_path, sampID)
+        self.label_check.show(mode, root_path, int(sampID))
 
     def __slot_btn_precisely_align__(self):
         self.precisely_align = MainWindow_precisely_align()
         root_path = self.ui.plainTextEdit_root_path.toPlainText()
-        sampID = int(self.ui.comboBox_sampID.currentText())
-        self.precisely_align.show(root_path, sampID)
+        sampID = self.ui.comboBox_sampID.currentText()
+        if not self.check_root_path():
+            return
+        if not self.check_sampID():
+            return
+        self.precisely_align.show(root_path, int(sampID))
 
     def __slot_btn_cut_PSG__(self):
         self.cut_PSG = MainWindow_cut_PSG()
         root_path = self.ui.plainTextEdit_root_path.toPlainText()
-        sampID = int(self.ui.comboBox_sampID.currentText())
-        self.cut_PSG.show(root_path, sampID)
+        sampID = self.ui.comboBox_sampID.currentText()
+        if not self.check_root_path():
+            return
+        if not self.check_sampID():
+            return
+        self.cut_PSG.show(root_path, int(sampID))
 
     def seek_sampID(self, path):
         if not Path(path).exists():
@@ -157,3 +188,15 @@ class MainWindow(QMainWindow, Ui_Signal_Label):
 
         sub_folders = [item.name for item in Path(path).iterdir() if item.is_dir()]
         self.ui.comboBox_sampID.addItems(sub_folders)
+
+    def check_root_path(self):
+        if self.ui.plainTextEdit_root_path.toPlainText() == Constants.STRING_IS_EMPTY:
+            PublicFunc.msgbox_output(self, Constants.MAINWINDOW_ROOT_PATH_NOT_EXIST, Constants.MSGBOX_TYPE_ERROR)
+            return False
+        return True
+
+    def check_sampID(self):
+        if self.ui.comboBox_sampID.currentText() == Constants.STRING_IS_EMPTY:
+            PublicFunc.msgbox_output(self, Constants.MAINWINDOW_SAMPID_EMPTY, Constants.MSGBOX_TYPE_ERROR)
+            return False
+        return True