大约有 35,417 项符合查询结果（耗时：0.0539秒） [XML]
SBT stop run without exiting
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edited Jul 26 '13 at 16:50
Eugene Yokota
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AWK: Access captured group from line pattern
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answered Jun 2 '10 at 12:50
Peter TillemansPeter Tillemans
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Where is the itoa function in Linux?
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102
EDIT: Sorry, I should have remembered that this machine is decidedly non-standard, having plugg...
How do I strip non alphanumeric characters from a string and keep spaces?
...ces to the negated character group:
@search_query = @search_query.gsub(/[^0-9a-z ]/i, '')
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Decompressing GZip Stream from HTTPClient Response
... client = new HttpClient(handler))
{
// your code
}
Update June 19, 2020:
It's not recommended to use httpclient in a 'using' block as it might cause port exhaustion.
private static HttpClient client = null;
ContructorMethod()
{
if(client == null)
{
HttpClientHandler handler ...
How can I format a decimal to always show 2 decimal places?
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108
I suppose you're probably using the Decimal() objects from the decimal module? (If you need exa...
How do I create a datetime in Python from milliseconds?
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Just convert it to timestamp
datetime.datetime.fromtimestamp(ms/1000.0)
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In where shall I use isset() and !empty()
...ty
FTA:
"isset() checks if a variable has a
value including (False, 0 or empty
string), but not NULL. Returns TRUE
if var exists; FALSE otherwise.
On the other hand the empty() function
checks if the variable has an empty
value empty string, 0, NULL or
False. Returns FALSE if v...
Choosing the default value of an Enum type without having to change values
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The default for an enum (in fact, any value type) is 0 -- even if that is not a valid value for that enum. It cannot be changed.
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Immutable vs Mutable types
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What? Floats are immutable? But can't I do
x = 5.0
x += 7.0
print x # 12.0
Doesn't that "mut" x?
Well you agree strings are immutable right? But you can do the same thing.
s = 'foo'
s += 'bar'
print s # foobar
The value of the variable changes, but it changes by chang...