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微博为什么限制140字(附短信70字限制考) - 闲聊区 - 清泛IT社区，为创新赋能！
...sage. We reserve 20 characters for people’s names, and the other 140 are all yours! (via Twitter FAQ)也就是说，twitter希望微博首先能做到“微”，言简意赅，其次这样的限制是考虑到短信更新状态的字数限制，本身是160字母的限制，再留20字给id长度...
How to learn R as a programming language [closed]
... the most about how to program with R had nothing to do with statistics at all.
Knowing functions like parse() and eval() is by no means a measure for being "a good R programmer". Applications that require heavy use of these functions do not make up a majority of the problem space in which you can ...
How do I rotate the Android emulator display? [duplicate]
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Fn + Ctrl + F12, I really don't get why this get so many votes
– ericn
Apr 15 '13 at 1:10
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Is there a good JavaScript minifier? [closed]
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You can use UglifyJS online without the need to install it - jscompress.com . +1 for the product used by jQuery
– TMS
Oct 27 '13 at 14:13
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Remove scrollbar from iframe
...t work because the overflow happens in the iframe document, which you generally won't be able to modify because of cross-domain iframe security restrictions.
– thdoan
Apr 17 '15 at 11:09
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Find lines from a file which are not present in another file [duplicate]
...le1 file2
Note that if file2 contains duplicate lines that don't exist at all in file1, fgrep will output each of the duplicate lines. Also note that my totally non-scientific tests on a single laptop for a single (fairly large) dataset showed Solution 1 (using comm) to be almost 5 times faster tha...
Piping command output to tee but also save exit code of command [duplicate]
I have a shell script in which I wrap a command (mvn clean install), to redirect the output to a logfile.
4 Answers
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Cannot instantiate the type List [duplicate]
...wered Oct 31 '11 at 21:49
Matt BallMatt Ball
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How do I remove newlines from a text file?
I have the following data, and I need to put it all into one line.
19 Answers
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How to select the last record of a table in SQL?
This is a sample code to select all records from a table. Can someone show me how to select the last record of that table?
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