There were many cars in old Shanghai. Old Shanghai has always been famous for its busy traffic. In the old Shanghai era, Shanghai's economy was already in the forefront of the country, and under the influence of western culture, the local people's ideas were also relatively open. Before liberation, Shanghai was the first financial center in the Far East, and the financial markets such as stocks, gold and foreign exchange ranked first in Asia. Shanghai is the second largest futures trading center in the world, second only to Chicago. The world's largest gold spot trading center. The second largest diamond spot trading center in the world and one of the three largest non-ferrous metal pricing centers in the world.