My computer is broken, and all things are gone. I not remember the e-mail of google+, and cannot get in, what can I do?
Is the HDD also broken? Remove it and take it to a computer repair shop. When you are lucky only your operating system is corrupted but the rest of the data is still fine.
Here is some general help for you. http://support.google.com/mail/bin/answer.py?hl=en&answer=46346 It's for a general loss of google account, and covers loss password, lost username (which is the problem in your case). Hope this helps.