修改老师端修改手机长度限制

teacher/src/main/res/layout/activity_check_modify_phonenum.xml

@@ -28,6 +28,7 @@
             android:inputType="phone"
             android:paddingLeft="14dp"
             android:paddingRight="14dp"
+            android:maxLength="11"
             android:textColor="@color/color_1a1a1a"
             android:textColorHint="@color/color_999999"
             android:textSize="@dimen/sp_16"