public static User getInstantce() {
if (instantce == null) {
Object object = FileUtil.restoreObject(AppContants.CACHE_PATH + TAG);
if (object == null) {
// App第一次启动，文件不存在，则新建之
object = new User();
FileUtil.saveObject(AppContants.CACHE_PATH + TAG, object);
}
instantce = (User) object;
}
return instantce;
}
public void saveInfo() {
FileUtil.saveObject(AppContants.CACHE_PATH, this);
}