Xuanhan County, located in the mountainous area of northeast Sichuan, is actually a county with a low overall development level. On the other hand, Xuanhan County has the highest economic scale among all districts and counties in Dazhou, and its total economic output has exceeded 40 billion yuan. At the same time, Xuanhan County is close to the main city of Dazhou, which is the closest among several counties in Dazhou. In recent years, the development of Xuanhan County, the size of the county seat and the expansion of the population are also relatively high among all districts and counties in Dazhou. Didi Chuxing is a one-stop travel platform, covering taxis, special cars, Didi Express, hitchhiking, driving, public transportation, freight and other businesses. It was renamed from Didi taxi on September 9, 20 15. On February 27th, 2020, in order to meet users' demand for returning to work, Xiao Ju Rent-a-Car, a subsidiary of Xiao Ju Special Car, successively launched a "7-day free car rental service for 10,000 cars nationwide" in several major cities across the country. Users can make free reservations through Xiao Ju Car Rental App or Didi App. On August 4th, "Suzhou High-tech Zone 2020 Hurun Global Unicorn List" was released, and Didi Chuxing ranked third.