大约有 30,000 项符合查询结果（耗时：0.0600秒） [XML]
Check existence of directory and create if doesn't exist
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Use showWarnings = FALSE:
dir.create(file.path(mainDir, subDir), showWarnings = FALSE)
setwd(file.path(mainDir, subDir))
dir.create() does not crash if the directory already exists, it just prints out a warning. So if you can live with seeing warnings, there i...
Azure Blob Storage vs. File Service [closed]
...ng on the topic so far, it appears to me that both, Azure Blob Storage and File Service offer the ability to store file(s) and folder(s) (I understand that blobs can store any binary object, but any serialized binary stream is just a file at the end of the day) in a hierarchical structure that mimic...
Rails: How to list database tables/objects using the Rails console?
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by doing this you just list models files what if tables are exists in db and do not have model fild in the models dir !!
– abo-elleef
Oct 31 '13 at 5:58
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TypeError: sequence item 0: expected string, int found
...\xeb')
throws the following error:
Traceback (most recent call last):
File "/Users/tomasz/Python/MA-CIW-Scriptie/RecreateTweets.py", line 21, in <module>
print str(u'Libi\xeb')
UnicodeEncodeError: 'ascii' codec can't encode character u'\xeb' in position 4: ordinal not in range(128)
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Count cells that contain any text
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Sample file
Note:
Tried to find the formula for counting non-blank cells (="" is a blank cell) without a need to use data twice. The solution for goolge-spreadhseet: =ARRAYFORMULA(SUM(IFERROR(IF(data="",0,1),1))). For excel ={S...
How to unzip a file using the command line? [closed]
Which commands can be used via the command line to unzip a file?
Preferably something built into Windows or open source/free tools.
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How to clear a notification in Android
...ice(Context.NOTIFICATION_SERVICE);
notificationManager.cancel(NOTIFICATION_ID);
In this code there is alway the same id used for notifications. If you have different notifications that need to be canceled you have to save the ids that you used to create the Notification.
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MongoDB, remove object from array
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try..
db.mycollection.update(
{'_id': ObjectId("5150a1199fac0e6910000002")},
{ $pull: { "items" : { id: 23 } } },
false,
true
);
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postgresql port confusion 5433 or 5432?
...th to your installation>/main/postgresql.conf
Search for port in this file.
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How to escape @ characters in Subversion managed file names?
For many Subversion operations, appending the '@' symbol to the end of a file or URL argument allows you to target a specific revision of that file. For example, "svn info test.txt@1234" will give information about test.txt as it existed in revision 1234.
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