diff --git a/Wordcloud_GUI/main.py b/Wordcloud_GUI/main.py
index c1d49de..7ca563c 100644
--- a/Wordcloud_GUI/main.py
+++ b/Wordcloud_GUI/main.py
@@ -1,7 +1,7 @@
 from PyQt5 import QtGui, uic
 from PyQt5.QtWidgets import *
 import tkinter as tk
-from tkinter import filedialog
+from tkinter import filedialog, messagebox
 import WcModule
 import sys
 import chardet
@@ -11,14 +11,19 @@ root.withdraw()
 WcModule.size = 210
 WcModule.maxword = 75
 WcModule.font = "msyh.ttc"
-WcModule.file = "../resources/111.txt"
-WcModule.mask = "../resources/mask.png"
-WcModule.stopwords = {'王勃', '一'}
+WcModule.stopwords = {'1', '2'}
 
 
+# noinspection PyGlobalUndefined
 class mainthread:
 
     def __init__(self):
+        global boot1
+        global boot2
+        global boot3
+        boot1 = 0
+        boot2 = 0
+        boot3 = 0
         self.mainWindow = uic.loadUi('main.ui')
         self.mainWindow.FileChooseButton.clicked.connect(self.Choose_File)
         self.mainWindow.MaskChooseButton.clicked.connect(self.Choose_Mask)
@@ -36,34 +41,40 @@ class mainthread:
         file_path = filedialog.askopenfilename()
         WcModule.file = file_path
         cursor = self.mainWindow.LogBrowser.textCursor()
+        global boot1
         if file_path == "":
+            boot1 = 0
             self.mainWindow.FilePathPreview.setText(file_path)
             cursor.movePosition(QtGui.QTextCursor.End)
             cursor.insertText(f"[Sys]:File path unselected\n")
             self.mainWindow.LogBrowser.setTextCursor(cursor)
             self.mainWindow.LogBrowser.ensureCursorVisible()
+            self.alert_box("输入路径为空")
         else:
             self.mainWindow.FilePathPreview.setText(file_path)
             data = open(file=file_path, mode='rb')
             result = chardet.detect(data.read())
             result = result["encoding"]
             cursor.movePosition(QtGui.QTextCursor.End)
-            cursor.insertText(f"[Sys]:File path selected:{file_path}\n")
+            cursor.insertText(f"[Sys]:File path selected: {file_path}\n")
             self.mainWindow.LogBrowser.setTextCursor(cursor)
             self.mainWindow.LogBrowser.ensureCursorVisible()
             if "GB" in result:
+                boot1 = 1
                 WcModule.codec = "gbk"
                 cursor.movePosition(QtGui.QTextCursor.End)
                 cursor.insertText(f"[Sys]:File codec detected: GB2312(GBK)\n")
                 self.mainWindow.LogBrowser.setTextCursor(cursor)
                 self.mainWindow.LogBrowser.ensureCursorVisible()
             elif "utf" in result:
+                boot1 = 1
                 WcModule.codec = "utf-8"
                 cursor.movePosition(QtGui.QTextCursor.End)
                 cursor.insertText(f"[Sys]:File codec detected: UTF-8\n")
                 self.mainWindow.LogBrowser.setTextCursor(cursor)
                 self.mainWindow.LogBrowser.ensureCursorVisible()
             else:
+                boot1 = 0
                 cursor.movePosition(QtGui.QTextCursor.End)
                 cursor.insertText(f"[Sys]:File codec detection Failed\n")
                 self.mainWindow.LogBrowser.setTextCursor(cursor)
@@ -74,16 +85,21 @@ class mainthread:
         mask_path = filedialog.askopenfilename()
         WcModule.mask = mask_path
         cursor = self.mainWindow.LogBrowser.textCursor()
+        global boot2
+        boot2 = 0
         if mask_path == "":
-            self.mainWindow.FilePathPreview.setText(mask_path)
+            self.mainWindow.MaskPathPreview.setText(mask_path)
             cursor.movePosition(QtGui.QTextCursor.End)
             cursor.insertText(f"[Sys]:Mask path unselected\n")
             self.mainWindow.LogBrowser.setTextCursor(cursor)
             self.mainWindow.LogBrowser.ensureCursorVisible()
+            self.alert_box("输入路径为空")
+            boot2 = 0
         else:
+            boot2 = 1
             self.mainWindow.MaskPathPreview.setText(mask_path)
             cursor.movePosition(QtGui.QTextCursor.End)
-            cursor.insertText(f"[Sys]:Mask path selected:{mask_path}\n")
+            cursor.insertText(f"[Sys]:Mask path selected: {mask_path}\n")
             self.mainWindow.LogBrowser.setTextCursor(cursor)
             self.mainWindow.LogBrowser.ensureCursorVisible()
 
@@ -95,16 +111,29 @@ class mainthread:
         max_word = self.mainWindow.MaxWordCountBox.value()
         WcModule.maxword = max_word
 
-    @staticmethod
-    def Confirm_input():
-        inp = str(input_words)
-        inp = inp.replace('，', ',')
-        inp = inp.split(',')
-        WcModule.stopwords = set(inp)
+    def Confirm_input(self):
+        cursor = self.mainWindow.LogBrowser.textCursor()
+        if boot3 == 0:
+            cursor.movePosition(QtGui.QTextCursor.End)
+            cursor.insertText(f"[Sys]:Stop words undefined\n")
+            self.mainWindow.LogBrowser.setTextCursor(cursor)
+            self.mainWindow.LogBrowser.ensureCursorVisible()
+            self.alert_box("无输入")
+        else:
+            inp = str(input_words)
+            inp = inp.replace('，', ',')
+            inp = inp.split(',')
+            WcModule.stopwords = set(inp)
+            cursor.movePosition(QtGui.QTextCursor.End)
+            cursor.insertText(f"[Sys]:Stop words: {set(inp)}\n")
+            self.mainWindow.LogBrowser.setTextCursor(cursor)
+            self.mainWindow.LogBrowser.ensureCursorVisible()
 
     @staticmethod
     def textChanged(text):
         global input_words
+        global boot3
+        boot3 = 1
         input_words = None
         input_words = text
 
@@ -112,14 +141,27 @@ class mainthread:
     def selectionChange(i):
         WcModule.font = fontlist[i]
 
+    @staticmethod
+    def alert_box(str1):
+        a = messagebox.showerror('Error', str1)
+        print(a)
+
     def Generate_Action(self):
         cursor = self.mainWindow.LogBrowser.textCursor()
-        cursor.movePosition(QtGui.QTextCursor.End)
-        cursor.insertText(f"[Sys]:Parameters:{WcModule.size, WcModule.maxword, WcModule.font, WcModule.file, WcModule.mask, WcModule.stopwords}\n")
-        cursor.insertText(f"[Sys]:Generating.....\n")
-        self.mainWindow.LogBrowser.setTextCursor(cursor)
-        self.mainWindow.LogBrowser.ensureCursorVisible()
-        WcModule.generate(WcModule.size, WcModule.maxword, WcModule.font, WcModule.file, WcModule.mask, WcModule.stopwords, WcModule.codec)
+        if boot1 + boot2 == 2:
+            cursor.movePosition(QtGui.QTextCursor.End)
+            cursor.insertText(
+                f"[Sys]:Parameters: {WcModule.size, WcModule.maxword, WcModule.font, WcModule.file, WcModule.mask, WcModule.stopwords, WcModule.codec}\n")
+            cursor.insertText(f"[Sys]:Generating.....\n")
+            self.mainWindow.LogBrowser.setTextCursor(cursor)
+            self.mainWindow.LogBrowser.ensureCursorVisible()
+            WcModule.generate(WcModule.size, WcModule.maxword, WcModule.font, WcModule.file, WcModule.mask, WcModule.stopwords, WcModule.codec)
+        else:
+            cursor.movePosition(QtGui.QTextCursor.End)
+            cursor.insertText(f"[Sys]:Parameter missing\n")
+            self.mainWindow.LogBrowser.setTextCursor(cursor)
+            self.mainWindow.LogBrowser.ensureCursorVisible()
+            self.alert_box("缺少必要参数")
 
 
 fontlist = ("msyh.ttc", "STXINGKA.TTF", "simkai.ttf", "AdobeHeitiStd-Regular.otf", "simsun.ttc", "SIMYOU.TTF")