iData是由北京大学、清华大学、浙江大学、复旦大学等师生学者共同筹建的用于教学、科研目的的公益互联网项目，旨在促进知识的传播和最新学术科技的共享。iData平台上所有信息均为公开发表的学术文献，由学者自由上传，并提供有限的免费浏览、下载服务。
2023年肥西县中考网上报名系统https://fx.hfzsks.org/student_enter/loginbm.htm九年级报名时间：2022年11月21日至24日我县学籍考生报名；2022年11月25日至26日外回单报考生报名；八年级报名时间：2023年3月中下旬。各报名点学校登陆肥西县中考网上报名系统（https://fx.hfzsks.org/student_enter/loginbm.htm）后，核对或录入考生信息时，须通过身份证读卡器读取考生身份信息，考生电子摄像在报名同时进行。
Codeforces. Programming competitions and contests, programming community Codeforces 是一家总部位于俄罗斯的竞赛编程网站，它会定期举办在线比赛，并且竞赛选手是世界上一些最优秀的程序员。他们的挑战通常需要用到高等数学和算法，如果你是一个编程新手，他们的挑战很可能对你来说难度比较大。
CodinGame is a challenge-based training platform for programmers where you can play with the hottest programming topics. Solve games, code AI bots, learn from your peers, have fun.
CodeSignal is the leading technical interview solution, helping talent acquisition and engineering teams #GoBeyondResumes to hire high-quality and diverse technical talent. Use CodeSignal's skills evaluation frameworks to tap into underrepresented pools of candidates, save valuable engineering resources, increase speed-to-hire, and increase candidate pipeline yield.
Improve your coding skills with our library of 300+ challenges and prepare for coding interviews with content from leading technology companies.Coderbyte 提供了200多种编程挑战。在这里，你可以：使用10种编程语言中的一种进行在线挑战。看到网站发布的大多数挑战的官方解决方案。查看该网站其他80万用户为同一挑战提供的解决方案。
A Computer Science portal for geeks. It contains well written, well thought and well explained computer science and programming articles, quizzes and practice/competitive programming/company interview Questions.
Powerful coding training system. LintCode has the most interview problems covering Google, Facebook, Linkedin, Amazon, Microsoft and so on. We provide Chinese and English versions for coders around the world.
WHY HAVE JUST ONE GREAT DEVELOPER WHEN YOU CAN HAVE A COMMUNITY OF THEM?Increases Execution Velocity 3x Over Traditional Means.Get The Best Talent on Your Work. Start Work Immediately.
w3cschool启用中文品牌名--编程狮，是一个专业的W3C前端开发及编程入门学习平台，提供包括HTML,CSS,Javascript,jQuery,C,PHP,Java,Python,Sql,Mysql等编程语言和开源技术的在线教程及使用手册，是类国外w3schools的W3C学习社区及菜鸟编程平台。
