/**
* 移除指定对象
* @param users
* @param username
*/
public static void removeSpecifiedObject(List<User> users, String username) {
int size = labels.size();
for (int i = size - 1; i >= 0; i--) {
User item = labels.get(i);
if (item.getUserName().equals(username)) {
users.remove(username);
}
}
}