diff --git a/.gitignore b/.gitignore
index 1fc986b..0bbcc8b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,5 @@
 .vscode
+.idea
 build
 data
 sqlcipher-3.0.1
diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index 3039714..67b3fcb 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -4,12 +4,11 @@
     <option name="autoReloadType" value="SELECTIVE" />
   </component>
   <component name="ChangeListManager">
-    <list default="true" id="84e65474-7da9-466d-baf3-cc88dde3ffdd" name="变更" comment="修复部分bug">
+    <list default="true" id="84e65474-7da9-466d-baf3-cc88dde3ffdd" name="变更" comment="替换chat里的contact">
+      <change beforePath="$PROJECT_DIR$/.gitignore" beforeDir="false" afterPath="$PROJECT_DIR$/.gitignore" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/app/DataBase/data.py" beforeDir="false" afterPath="$PROJECT_DIR$/app/DataBase/data.py" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/app/Ui/chat/chat.py" beforeDir="false" afterPath="$PROJECT_DIR$/app/Ui/chat/chat.py" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/app/Ui/contact/contact.py" beforeDir="false" afterPath="$PROJECT_DIR$/app/Ui/contact/contact.py" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/app/Ui/mainview.py" beforeDir="false" afterPath="$PROJECT_DIR$/app/Ui/mainview.py" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/app/Ui/decrypt/decrypt.py" beforeDir="false" afterPath="$PROJECT_DIR$/app/Ui/decrypt/decrypt.py" afterDir="false" />
     </list>
     <option name="SHOW_DIALOG" value="false" />
     <option name="HIGHLIGHT_CONFLICTS" value="true" />
@@ -466,7 +465,14 @@
       <option name="project" value="LOCAL" />
       <updated>1698853140384</updated>
     </task>
-    <option name="localTasksCounter" value="39" />
+    <task id="LOCAL-00039" summary="替换chat里的contact">
+      <created>1698940208580</created>
+      <option name="number" value="00039" />
+      <option name="presentableId" value="LOCAL-00039" />
+      <option name="project" value="LOCAL" />
+      <updated>1698940208580</updated>
+    </task>
+    <option name="localTasksCounter" value="40" />
     <servers />
   </component>
   <component name="UnknownFeatures">
@@ -523,23 +529,24 @@
     <MESSAGE value="重构一些class，删除一些不必要的文件" />
     <MESSAGE value="用stackedWidget实现导航栏" />
     <MESSAGE value="修复部分bug" />
-    <option name="LAST_COMMIT_MESSAGE" value="修复部分bug" />
+    <MESSAGE value="替换chat里的contact" />
+    <option name="LAST_COMMIT_MESSAGE" value="替换chat里的contact" />
     <option name="OPTIMIZE_IMPORTS_BEFORE_PROJECT_COMMIT" value="true" />
     <option name="REFORMAT_BEFORE_PROJECT_COMMIT" value="true" />
   </component>
   <component name="XDebuggerManager">
     <breakpoint-manager>
       <breakpoints>
-        <line-breakpoint enabled="true" suspend="THREAD" type="python-line">
-          <url>file://$PROJECT_DIR$/app/DataBase/output.py</url>
-          <line>42</line>
-          <option name="timeStamp" value="3" />
-        </line-breakpoint>
         <line-breakpoint enabled="true" suspend="THREAD" type="python-line">
           <url>file://$PROJECT_DIR$/app/DataBase/output.py</url>
           <line>412</line>
           <option name="timeStamp" value="7" />
         </line-breakpoint>
+        <line-breakpoint enabled="true" suspend="THREAD" type="python-line">
+          <url>file://$PROJECT_DIR$/main.py</url>
+          <line>18</line>
+          <option name="timeStamp" value="8" />
+        </line-breakpoint>
       </breakpoints>
       <default-breakpoints>
         <breakpoint type="python-exception">
diff --git a/app/DataBase/data.py b/app/DataBase/data.py
index 5d94e02..99b9fb5 100644
--- a/app/DataBase/data.py
+++ b/app/DataBase/data.py
@@ -129,7 +129,7 @@ def decrypt(db, key):
     if not db:
         print('没有数据库文件')
         return False
-    if os.path.exists('./app/DataBase/Msg.db'):
+    if is_db_exist():
         print('/app/DataBase/Msg.db  已经存在')
         return True
     cmd = './sqlcipher-3.0.1/bin/sqlcipher-shell32.exe'
diff --git a/app/Ui/decrypt/decrypt.py b/app/Ui/decrypt/decrypt.py
index 5562a4c..981879b 100644
--- a/app/Ui/decrypt/decrypt.py
+++ b/app/Ui/decrypt/decrypt.py
@@ -8,7 +8,6 @@
 @comment : ··· 解密数据库，导出原始数据库文件
 """
 import hashlib
-import os
 import time
 import xml.etree.ElementTree as ET
 
@@ -32,11 +31,11 @@ class DecryptControl(QWidget, decryptUi.Ui_Dialog):
         self.btn_db.clicked.connect(self.get_db)
         self.btn_xml.clicked.connect(self.get_xml)
         self.pushButton_3.clicked.connect(self.decrypt)
-        self.xml_path = None
-        self.db_path = None
+        self.xml_path: str = None
+        self.db_path: str = None
 
     def db_exist(self):
-        if os.path.exists('./app/DataBase/Msg.db'):
+        if data.is_db_exist():
             self.btnEnterClicked()
             self.close()
 
@@ -52,8 +51,13 @@ class DecryptControl(QWidget, decryptUi.Ui_Dialog):
     def get_db(self):
         self.db_path, _ = QFileDialog.getOpenFileName(self, 'Open file', r'..', "Database files (*.db)")
         if self.db_path:
-            self.label_db.setText('数据库已就绪')
-            return self.db_path
+            if self.db_path.isascii():
+                self.label_db.setText('数据库已就绪')
+                return self.db_path
+            else:
+                self.label_db.setText('数据库未就绪')
+                QMessageBox.critical(self, "错误", "db文件请不要带有中文路径\n可以放在D:\\\\data 目录下")
+                self.db_path = ''
         return False
 
     def decrypt(self):
@@ -107,6 +111,8 @@ class DecryptControl(QWidget, decryptUi.Ui_Dialog):
         :return: None
         """
         self.progressBar.setProperty('value', value)
+        if value == '99':
+            QMessageBox.information(self, "温馨提示", "我知道你很急\n但你先别急")
         if value == '100':
             QMessageBox.information(self, "解密成功", "请退出该界面",
                                     QMessageBox.Yes)