大约有 47,000 项符合查询结果(耗时:0.0642秒) [XML]
RegEx: Smallest possible match or nongreedy match
... without matching unless absolutely necessary, use something like (?:blah){0,1}?. For a repeating match (either using {n,} or {n,m} syntax) append a question mark to try to match as few as possible (e.g. {3,}? or {5,7}?).
The documentation on regular expression quantifiers may also be helpful.
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How to revert a Git Submodule pointer to the commit stored in the containing repository?
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edited Sep 15 at 1:10
answered Oct 24 '11 at 23:28
Br...
PostgreSQL, checking date relative to “today”
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answered Oct 13 '10 at 22:37
Paul TomblinPaul Tomblin
162k5555 gold badges299299 silver badges392392 bronze badges
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'Microsoft.SqlServer.Types' version 10 or higher could not be found on Azure
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answered Nov 1 '12 at 10:23
Thomas BolanderThomas Bolander
3,48422 gold badges1919 silver badges2727 bronze badges
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Pandas conditional creation of a series/dataframe column
...here(df['Set']=='Z', 'green', 'red')
print(df)
yields
Set Type color
0 Z A green
1 Z B green
2 X B red
3 Y C red
If you have more than two conditions then use np.select. For example, if you want color to be
yellow when (df['Set'] == 'Z') & (df['Type'] == ...
Get Folder Size from Windows Command Line
...d up sizes recursively (the following is a batch file):
@echo off
set size=0
for /r %%x in (folder\*) do set /a size+=%%~zx
echo %size% Bytes
However, this has several problems because cmd is limited to 32-bit signed integer arithmetic. So it will get sizes above 2 GiB wrong1. Furthermore it will l...
Is there a way to iterate over a dictionary?
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Yes, NSDictionary supports fast enumeration. With Objective-C 2.0, you can do this:
// To print out all key-value pairs in the NSDictionary myDict
for(id key in myDict)
NSLog(@"key=%@ value=%@", key, [myDict objectForKey:key]);
The alternate method (which you have to use if you're ...
How to get commit history for just one branch?
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Adam Rosenfield
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answered Jun 7 '13 at 0:06
alexalex
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How can I parse a string with a comma thousand separator to a number?
I have 2,299.00 as a string and I am trying to parse it to a number. I tried using parseFloat , which results in 2. I guess the comma is the problem, but how would I solve this issue the right way? Just remove the comma?
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byte[] to hex string [duplicate]
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605
There is a built in method for this:
byte[] data = { 1, 2, 4, 8, 16, 32 };
string hex = BitCo...
