stackoverflow
1.首先你要明白，并没有任何人有义务一定要帮你，所以，你一定要心怀感激的心里；
2. 在提问之前，先自己花时间去思考，然后解决不了的问题，再尝试使用google，或者在占内进行适当的搜索；
3.要清楚 简要的描述自己的问题，必要的时刻要贴上一定的代码；
总的来说，stackoverflow 很好很强大的一个社区，这里的人都很热心的去解决各种问，我目前提过两次问题，都很快的得到了响应；
然后是总结一些，常用的英文；来自知乎的一些总结
1 in my limited experience with......
2.I am searching for a long time on net, but no use, Please help or try to give some ideas how to achieve this;
好了，先就这么多吧；
3.after searching around fro a decent xx solution and found that eveything out there was difficult to use;
4.I' ve looked around and apparently I've got the choice between these libraries/ solutions
5.which seems it's a promising solution
6.Ive tried multiple variations of this, but none of them seem to work. Any ideas?
7.Wanted to know if it's good practice to do that and what would be the best way to do that?
8.Thanks in advance
9.If I understand you correctly, you want to xxx
10.Can you provided more details about your use case ? Can you provide more xml and code setting the url ?
finally:
thank you for your answer sincerely