Founded in 1999, CSDN is the largest community website and services platform in China. We are the lifetime partner of software developers and IT Pros in China, serving them with Knowledge, Career and Development services to meet their fundamental needs of Learning, Networking, and Programming during their growth lifecycle. CSDN has more than 30 million registered users (8 million active users) and 500,000 enterprises as partnership members. CSDN owns several leading brands: ·The No.1 Chinese IT technology online community in the world: csdn.net ·The authoritative IT professional journal: Programmer magazine ·IT career Service: Careerfocus ·Leading Chinese IT technology learning platform: LeZhi Education ·Code hosting + Social coding platform: code.csdn.net ·Mobile Development Tools&Services Integration Platform: mobilehub.io ·IT career website:job.csdn.net ·The largest Chinese software crowdsourcing platform:www.csto.com ·Leading senior software developers community: www.iteye.com ·The largest community of IT managers: CTO Club ·Cloud Computing Industry Salon: Cloud Computing Club ·The technology organization for mobile developers: CSDN Mobile Developer Club ·The technology organization for national university students:CSDN University Club