您会建议哪个开源项目做出贡献？

What open source projects would you recommend as a good place for a starting open source developer? Factors that I think would be important are some obvious ones like well written code and a community that is helpful to newbies. But it might be nice if the code base is such that I can start hacking some small problems without really understanding the details of how everything works.What open source projects would you recommend a