diff --git a/package.json b/package.json
index 75d84303..a8614a90 100644
--- a/package.json
+++ b/package.json
@@ -24,6 +24,7 @@
   },
   "dependencies": {
     "@antv/data-set": "^0.9.0",
+    "@babel/polyfill": "^7.0.0",
     "@babel/runtime": "^7.0.0",
     "antd": "^3.9.0",
     "bizcharts": "^3.1.10",
diff --git a/src/components/Login/LoginItem.js b/src/components/Login/LoginItem.js
index 762964c2..a1d216a3 100644
--- a/src/components/Login/LoginItem.js
+++ b/src/components/Login/LoginItem.js
@@ -8,6 +8,10 @@ import LoginContext from './loginContext';
 const FormItem = Form.Item;
 
 class WarpFormItem extends Component {
+  static defaultProps = {
+    buttonText: '获取验证码',
+  };
+
   constructor(props) {
     super(props);
     this.state = {
diff --git a/src/global.js b/src/global.js
new file mode 100644
index 00000000..c3030bdd
--- /dev/null
+++ b/src/global.js
@@ -0,0 +1 @@
+import '@babel/polyfill';