diff --git a/README.md b/README.md
index 90458fc3a46..03654a685f2 100644
--- a/README.md
+++ b/README.md
@@ -46,8 +46,7 @@ https://uformjs.org
 
 ## Demo
 
-https://codesandbox.io/s/245o92lnzy
-
+[codesandbox](https://codesandbox.io/s/o5up7)
 
 ## Community
 
diff --git a/README.zh-cn.md b/README.zh-cn.md
index a82693e6e1a..28c21dc2eb9 100644
--- a/README.zh-cn.md
+++ b/README.zh-cn.md
@@ -47,12 +47,11 @@ https://uformjs.org
 
 ## 入门案例
 
-https://codesandbox.io/s/245o92lnzy
+[codesandbox](https://codesandbox.io/s/o5up7)
 
 ## 社区
 
 
-
 | Online Chat Room                                             | 微信                                                         | 钉钉 |
 | ------------------------------------------------------------ | ------------------------------------------------------------ | ---- |
 | [gitter.im](https://gitter.im/alibaba-uform/community?source=orgpage) | <img width="200" src="https://img.alicdn.com/tfs/TB1jhm5VNYaK1RjSZFnXXa80pXa-620-824.png"/> |   <img width="200" src="https://img.alicdn.com/tfs/TB1pHMzUrPpK1RjSZFFXXa5PpXa-620-818.png"/>   |
diff --git a/packages/antd/src/fields/textarea.js b/packages/antd/src/fields/textarea.js
deleted file mode 100644
index b8b8d1cbe8a..00000000000
--- a/packages/antd/src/fields/textarea.js
+++ /dev/null
@@ -1,13 +0,0 @@
-import { connect, registerFormField } from '@uform/react'
-import { Input } from 'antd'
-import { acceptEnum, mapStyledProps, mapTextComponent } from '../utils'
-
-const { TextArea } = Input
-
-registerFormField(
-  'textarea',
-  connect({
-    getProps: mapStyledProps,
-    getComponent: mapTextComponent
-  })(acceptEnum(TextArea))
-)
diff --git a/types/@uform/types.d.ts b/types/@uform/types.d.ts
deleted file mode 100644
index 62198753293..00000000000
--- a/types/@uform/types.d.ts
+++ /dev/null
@@ -1,8 +0,0 @@
-export function isArr(p0: any): any;
-export function isBool(obj: any): void;
-export function isFn(obj: any): void;
-export function isNum(obj: any): void;
-export function isObj(val: any): void;
-export function isPlainObj(obj: any): void;
-export function isRegExp(obj: any): void;
-export function isStr(obj: any): void;