大约有 2,317 项符合查询结果（耗时：0.0181秒） [XML]
Can an Android NFC phone act as an NFC tag?
...one will act as an NFC reader which will read data from an NFC tag. Now my question is, can we switch this around? Can we make an Android NFC phone behave as the tag which an NFC reader will get data from?
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How do I parse a string to a float or int?
...ently imperfect for representing decimals. For more, see stackoverflow.com/q/21895756/931277
– dokkaebi
Aug 18 '17 at 21:44
20
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How to create separate AngularJS controller files?
...g a record of solutions is what SO is really all about, not extemporaneous q and a.
– Fresheyeball
Mar 10 '14 at 16:13
2
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How can you list the matches of Vim's search?
...ing
set hlsearch
" yank those cheat commands, in normal mode type q: than p to paste in the opened cmdline
" how-to search for a string recursively
" :grep! "\<doLogErrorMsg\>" . -r
"
" how-to search recursively , omit log and git files
" :vimgrep /srch/ `find . -t...
Why are hexadecimal numbers prefixed with 0x?
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Related: stackoverflow.com/questions/18987911/… and stackoverflow.com/questions/11483216/…
– Řrřola
Jun 10 '14 at 13:13
23
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What are the most common non-BMP Unicode characters in actual use? [closed]
...Multilingual Plane) are the most common so far? These are the ones which require 4 bytes in UTF-8 or surrogates in UTF-16.
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How to get Ruby / Homebrew / RVM to work on Yosemite?
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when I make this change, I get the error "Homebrew requires Leopard or higher. For Tiger support, see: github.com/mistydemeo/tigerbrew" even though I'm running yosemite
– scientiffic
Oct 21 '14 at 14:20
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Android Spinner: Get the selected item change event
... answered Nov 11 '09 at 10:50
znqznq
41.7k3838 gold badges113113 silver badges141141 bronze badges
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Meaning of $? (dollar question mark) in shell scripts
...ure.
Hence when scripting; I tend to use the following syntax
if [ $? -eq 0 ]; then
# do something
else
# do something else
fi
The comparison is to be done on equals to 0 or not equals 0.
** Update Based on the comment: Ideally, you should not use the above code block for comparison, refer t...
Postgresql: password authentication failed for user “postgres”
I have installed PostgreSQL 8.4, Postgres client and Pgadmin 3. Authentication failed for user "postgres" for both console client and Pgadmin. I have typed user as "postgres" and password "postgres", because it worked before. But now authentication is failed. I did it before a couple of times withou...