Jiayuguan Railway Station parking lot charges 4 yuan every time, and 2 yuan will be added after 1 hour. Jiayuguan City Security Company's charge notice shows that this parking lot will be charged by computer from 0: 00 to 24: 00 on1October 20 18 19. The charge standard for small cars is 4 yuan, and 2 yuan will be added after 1 hour.