1.提交AsyncStorage（https://reactnative.cn/docs/asyncstorage/#docsNav）。增加本地存储，删除，修改，获取方法。

pages/components/PersonalInfo.js

@@ -31,6 +31,7 @@ import GradeSelectionModal from "./GradeSelectionModal";
 import Header from "./Header";
 import PersonalInfoDialog from "./PersonalInfoDialog";
 import { NavigationActions, StackActions } from "react-navigation";
+import asyncStorage from "../utils/asyncStorage";
 type Props = {};
 
 export default class PersonalInfo extends BasePage {
@@ -110,7 +111,6 @@ export default class PersonalInfo extends BasePage {
                   style={{ flex: 4 }}
                   width={this.getWindowWidth()}
                   title="个人信息"
-                  backPress={() => this.goBack()}
                   lefttype={2}
                   righttype={0}
                   textcolor={"white"}
@@ -625,6 +625,7 @@ export default class PersonalInfo extends BasePage {
       case 4:
         this.dialog.setInfo("我的学校", "学校名称");
         this.dialog.setModalVisible(true, 2);
+
         break;
       case 5:
         this.gradeselectionModal.setModalVisible(true);
@@ -658,6 +659,7 @@ export default class PersonalInfo extends BasePage {
     this.setState({
       birthday_time: year + "年" + month + "月" + day + "日"
     });
+    alert("birthday_time:" + this.state.birthday_time);
   }
 
   photoback(photo_uri) {