Depending on what services you're offering, you'll need to purchase equipment such as floor cleaning supplies, trash bags, an industrial vacuum cleaner, and so on to set up your business. Get heavy-duty equipment that will be able to endure a lot of wear and tear and last for many years.  Make sure you have the right safety equipment to keep you and any employees you might hire safe on the job. Gloves and masks are a necessity if you're going to be handling toxic cleaning chemicals. Try renting equipment for the first few weeks so you'll have the chance to make sure it's up to your standards before making a purchase. You'll need a car, truck or van for transportation to and from your cleaning jobs. You may be able to use vehicles from an employer or other source, but if not, you'll need to lease or buy your own business vehicle. Reliable transportation is crucial for providing cleaning services to clients.  The look of your company vehicle is important. Driving around in a van that's run down with a lot of chips and dents isn't good advertisement for your company. Consider having your logo screen printed on your vehicle as a way to advertise. Cleaning services may start up as sole proprietorships, where the owner/operator actually does all of the work, because cleaning doesn't have to require many sets of hands. However, as your business grows, you may need to hire more people. Make sure you know about all of the legal requirements around this process as well. Also make sure you know your workers well. Taking into account the cost of labor, materials, and overhead, figure out how much to charge for your services you'll be making a profit. Do research to determine what the industry standards are for services like floor cleaning and janitorial services. You're free to negotiate prices with each new client, but it's good to have a baseline in mind so you'll be able to stay in business. You'll need to keep track of what your clients owe by sending them invoices that lay out requirements for payment. Let your...

TL;DR in Chinese:
妥善准备你的清洁仪器。 购买公司专用车。 需要的话雇佣一些员工。 建立价格制度。 建立记帐制度。