disable name change

src/components/UserNameForm.js

@@ -75,10 +75,10 @@ class EmailForm extends React.Component {
       <Form onSubmit={this.onSubmit}>
         <FormItem {...usernameProps.fromItem}>
           {getFieldDecorator('username', { ...usernameProps.decorator })(
-            <Input {...usernameProps.input}/>,
+            <Input {...usernameProps.input}disabled/>,
           )}
           {
-            <div class="alert alert-warning" role="alert">修改用户名后战绩会清零、也会失去绑定的云卡组。建议提前备份卡组。改名在7月7日23：59关闭。</div>
+            <div class="alert alert-warning" role="alert"> 改名功能关闭，每年1、3、7、10月的第一周开放。</div>
           }
 
         </FormItem>
@@ -90,7 +90,7 @@ class EmailForm extends React.Component {
         </FormItem>
 
         <FormItem>
-          <SubmitButton/>
+          <SubmitButton disabled/>
         </FormItem>
       </Form>
     );