Introduction - If you have any usage issues, please Google them yourself
Design a weather system to complete membership registration, audit, landing and other functions, while members can view the different regions of the meteorological information (optional, the smallest geographical unit for the city) administrators of the system for routine maintenance and management (including members of the registration confirmation, data updates and inserts) can automatically compare data the same period of the calendar year, and gives the comparison value (eg temperature much higher degree than the calendar year, or a period of many years while the coldest (hot) day precipitation max, etc.).