Both KFC and McDonald's can do it, but students may generally be required, and others should be ok. Go directly to the counter and ask the team leader on duty to apply, and people will give you a form to fill in and inform you of the specific situation.
Trust-Mart or Wal-Mart are also hiring, you can try.
If you have the ability, you can be a tutor, starting from 25 yuan in one hour, but you have to go to the training center for a written interview.