diff --git a/language/English.ahk b/language/English.ahk
index 2686a08..79be7e7 100644
--- a/language/English.ahk
+++ b/language/English.ahk
@@ -206,7 +206,7 @@ cldocs=https://capslox.com/capslock-plus/en.html
 ;----------------------------------------------------------------;
 ; ## The hotstring settings of TabScript
 
-; - Capslock + Tab will replace the string matching a key name on the left of the cursor with the corresponding value, 
+; - Capslock + Tab will replace the string matching a key name on the left of the cursor with the corresponding value,
 ;   for example:
 ;   There is "@=capslock-plus@cjkis.me" here, then you can type "@" anywhere, and press "Capslock+Tab", the "@" will be
 ;   replaced with "capslock-plus@cjkis.me"
@@ -323,7 +323,7 @@ lang_settingsDemoFileContent_2=
 ;   Capslock + LALt + F1~F12
 ;   Capslock + LALt + 0~9
 ;   Capslock + LALt + a~z
-;   Capslock + LALt + `-=[]\;',./ 
+;   Capslock + LALt + `-=[]\;',./
 ;   Capslock + LALt + Backspace, Tab, Enter, Space, RAlt
 ;   Capslock + Win + 0~9
 
@@ -698,6 +698,23 @@ caps_win_0=keyFunc_winbind_binding(10)
 
 ;----------------Other Functions----------------
 
+; wrap the selected text with specified characters, or input specified characters
+; examples:
+;
+; "..."
+; caps_quote=keyFunc_doubleChar(""")
+;
+; (...)
+; caps_9=keyFunc_doubleChar((,))
+;
+; {...}
+; caps_leftSquareBracket=keyFunc_doubleChar({,})
+;
+; [...]
+; caps_rightSquareBracket=keyFunc_doubleChar([,])
+;
+keyFunc_doubleChar
+
 ; Previous media
 keyFunc_mediaPrev
 
diff --git a/language/Simplified_Chinese.ahk b/language/Simplified_Chinese.ahk
index 674b2b6..81ea7b9 100644
--- a/language/Simplified_Chinese.ahk
+++ b/language/Simplified_Chinese.ahk
@@ -292,12 +292,12 @@ lang_settingsDemoFileContent_2=
 ;   Capslock + F1~F12
 ;   Capslock + 0~9
 ;   Capslock + a~z
-;   Capslock + `-=[]\;',./ 
+;   Capslock + `-=[]\;',./
 ;   Capslock + Backspace, Tab, Enter, Space, RAlt
 ;   Capslock + LALt + F1~F12
 ;   Capslock + LALt + 0~9
 ;   Capslock + LALt + a~z
-;   Capslock + LALt + `-=[]\;',./ 
+;   Capslock + LALt + `-=[]\;',./
 ;   Capslock + LALt + Backspace, Tab, Enter, Space, RAlt
 ;   Capslock + Win + 0~9
 
@@ -372,7 +372,7 @@ caps_t=keyFunc_doNothing
 ;选中至行首
 caps_u=keyFunc_selectHome
 
-;独立剪贴板 1 的粘贴 
+;独立剪贴板 1 的粘贴
 caps_v=keyFunc_paste_1
 
 ;backspace
@@ -670,6 +670,23 @@ caps_win_0=keyFunc_winbind_binding(10)
 
 ;----------------其他功能----------------
 
+; 用指定的字符包裹选定的文本，或输出指定的字符
+; 例如:
+;
+; "..."
+; caps_quote=keyFunc_doubleChar(""")
+;
+; (...)
+; caps_9=keyFunc_doubleChar((,))
+;
+; {...}
+; caps_leftSquareBracket=keyFunc_doubleChar({,})
+;
+; [...]
+; caps_rightSquareBracket=keyFunc_doubleChar([,])
+;
+keyFunc_doubleChar
+
 ;上一首
 keyFunc_mediaPrev
 
diff --git a/lib/lib_keysFunction.ahk b/lib/lib_keysFunction.ahk
index 20bd701..c238939 100644
--- a/lib/lib_keysFunction.ahk
+++ b/lib/lib_keysFunction.ahk
@@ -140,11 +140,11 @@ keyFunc_translate(){
     global
     selText:=getSelText()
     if(selText)
-    { 
+    {
         ydTranslate(selText)
     }
     else
-    { 
+    {
         ClipboardOld:=ClipboardAll
         Clipboard:=""
         SendInput, ^{Left}^+{Right}^{insert}
@@ -238,7 +238,11 @@ keyFunc_doubleChar(char1,char2:=""){
     else
     {
         Clipboard:=char1 . char2
-        SendInput, +{insert}{left %charLen%}
+        SendInput, +{insert}
+        ; prevent the left input from interrupting the paste (may occur in vscode)
+        ; fact: tests show that 50ms is not enough
+        Sleep, 75
+        SendInput, {left %charLen%}
     }
     Sleep, 100
     Clipboard:=ClipboardOld
@@ -345,7 +349,7 @@ keyFunc_cut_1(){
         CapsLock2:=""
         return
     }
-        
+
     ClipboardOld:=ClipboardAll
     Clipboard:=""
     SendInput, ^{x}
@@ -657,7 +661,7 @@ keyFunc_getJSEvalString(){
         if(!ErrorLevel)
         {
             Clipboard:=result
-    
+
             return
         }
     }
@@ -806,7 +810,7 @@ keyFunc_winPin(){
     ;  {
     ;      WinSet, AlwaysOnTop, Off
     ;      WinSet, Transparent, Off
-    ;    
+    ;
     ;      return
     ;  }
     WinSet, AlwaysOnTop
@@ -858,7 +862,7 @@ keyfunc_wheel_down(){
     Send, {Wheeldown 3}
 }
 
- 
+
 ;keys functions end-------------
 
 
@@ -866,7 +870,7 @@ keyfunc_wheel_down(){
 ; init 初始单次移动距离
 ; a 加速度
 ; max 最大单次移动距离
-dynamic_speed(init:=10, a:=0.2, max:=80) 
+dynamic_speed(init:=10, a:=0.2, max:=80)
 {
     static N := 0
     if (A_ThisHotkey = A_PriorHotkey) and (A_TimeSincePriorHotkey < 300)