大约有 47,000 项符合查询结果（耗时：0.0726秒） [XML]
CSS: Control space between bullet and
I'd like to control how much horizontal space a bullet pushes its <li> to the right in an <ol> or <ul> .
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Cast an instance of a class to a @protocol in Objective-C
I have an object (a UIViewController) which may or may not conform to a protocol I've defined.
2 Answers
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Catching error codes in a shell pipe
...til the first is known to be successful, then you probably need to use temporary files. The simple version of that is:
tmp=${TMPDIR:-/tmp}/mine.$$
if ./a > $tmp.1
then
if ./b <$tmp.1 >$tmp.2
then
if ./c <$tmp.2
then : OK
else echo "./c failed" 1>&...
Renaming columns in pandas
...ataFrame using pandas and column labels that I need to edit to replace the original column labels.
27 Answers
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How to do version numbers? [closed]
...em and thus could always be labeled as beta. But since it's going to be a corporate product I really don't want the "unstable watchout" on there. So how would you go about versioning? Is 1.0 stable? Should the build date be in the version number? Tell me what you guys think!
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How to initialize an array in one step using Ruby?
...n also use a range:
array = ('1'..'3').to_a # parentheses are required
# or
array = *('1'..'3') # parentheses not required, but included for clarity
For arrays of whitespace-delimited strings, you can use Percent String syntax:
array = %w[ 1 2 3 ]
You can also pass a block to Array.new t...
Should I use multiplication or division?
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Python:
time python -c 'for i in xrange(int(1e8)): t=12341234234.234 / 2.0'
real 0m26.676s
user 0m25.154s
sys 0m0.076s
time python -c 'for i in xrange(int(1e8)): t=12341234234.234 * 0.5'
real 0m17.932s
user 0m16.481s
sys 0m0.048s...
Difference between int32, int, int32_t, int8 and int8_t
... across the data type int32_t in a C program recently. I know that it stores 32 bits, but don't int and int32 do the same?
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Is it possible to “decompile” a Windows .exe? Or at least view the Assembly?
...you can't really decompile an .exe, but can I at least view it in Assembly or attach a debugger?
16 Answers
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Should I use @EJB or @Inject
... @Inject and @EJB but I did not get any wiser. I have not done Java EE before nor do I have experience with dependency injection so I do not understand what I should use?
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