In the hotel, what do you use to wash clothes? There seems to be no washing powder, and then where to hang clothes?

Yes, except what is said upstairs, you can wash it yourself. Generally, hotels buy it with small packages of washing powder or detergent, which is very cheap, about two yuan. After washing, you can give it to the floor attendant, who will keep it for you. Generally speaking, there is no charge for drying. You can hang it in the bathroom, or you can tell the floor attendant that it is only in the place where they usually wash clothes. By the way, you should get on well with the floor attendant.