Zhangzhengbao is a one-stop securities service developed by Dongguan Securities, which integrates stock market, stock trading, stock account opening, stock trading and handheld business hall. Zhangzheng Baotianji HD is a mobile financial client software based on android tablet provided by Dongguan Securities, which includes various financial market services such as Shanghai and Shenzhen stock market transactions, commodity futures, international market information, etc. It supports tablet gravity sensing and realizes horizontal and vertical screen switching.