diff --git a/Readme.md b/README.md
similarity index 85%
rename from Readme.md
rename to README.md
index 4c6f2cc..cba6a74 100644
--- a/Readme.md
+++ b/README.md
@@ -10,11 +10,11 @@
 > 键盘
 
 ```js
-import Keyboard from 'http://unpkg.bytedo.org/@bytedo/keyboard/dist/index.js'
+import { KeyboardV1, KeyboardV2 } from 'http://unpkg.bytedo.org/@bytedo/keyboard/dist/index.js'
 
-var kb = new Keyboard()
+var kb = new KeyboardV2()
 // 默认整个document监听, 也可以单独对局部起效
-// var kb = new Keyboard(document.querySelector('.foo'))
+// var kb = new KeyboardV2(document.querySelector('.foo'))
 
 // 同时按Ctrl键和C键, 触发回调
 kb.on(['ctrl + c'], ev => {
@@ -113,9 +113,12 @@ kb.on(['ctrl + c', 'ctrl + v'], ev => {
 | Tab       |  tab        | 制表符键 |
 | Cmd/Win   |  meta       | Command/Win键(1.x版不区别左右) |
 | Space     |  space      | 空格键 |
-| Ctrl      |  ctrl       | Ctrl键(1.x版不区分左右) |
-| Shift     |  shift      | Shift键(1.x版不区分左右) |
-| Alt/Option|  alt        | Alt/Option键(1.x版不区分左右) |
+| Ctrl(同shift) |  ctrl       | Ctrl键(1.x版不区分左右) |
+| Shift     |  shift      | Shift键(1.x) |
+| Shift(left) | shift_left | 左侧Shift键(2.x) |
+| Shift(right) | shift_right | 右侧Shift键(2.x) |
+| Alt/Option(同shift) | alt/option | Alt/Option键(1.x版不区分左右) |
+| Win/Cmd(同shift) | win/cmd | Win/Cmd（只存在于2.x版本） |
 | Enter     |  enter      | 回车键(1.x版不区分小数字键盘的回车) |
 | '         |  '          | 单引号键 |
 | *         |  *          | 小数字键盘中的乘号 |
@@ -128,5 +131,5 @@ kb.on(['ctrl + c', 'ctrl + v'], ev => {
 | =         |  =          | 等号 |
 | [         |  [          | 左边中括号 |
 | ]         |  ]          | 右边中括号 |
-| `         |  `          | 反引号(Tab上面的键) |
+| `         |  `          | 反引号(Tab上面的键) ||
 | \         |  \          | 反斜杠 |
\ No newline at end of file