大约有 3,000 项符合查询结果(耗时:0.0290秒) [XML]

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Best way to check if object exists in Entity Framework?

... and trimmed to keep its length manageable). Note that the raw data was a CSV file that contained many individual records that had to be parsed. The records in each consecutive file (which came at a rate of about 1 every 5 minutes) overlapped considerably, hence the high percentage of duplicates. ...
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How can I use pickle to save a dict?

...unserialized_data = mpu.io.read('filename.pickle') Alternative Formats CSV: Super simple format (read & write) JSON: Nice for writing human-readable data; VERY commonly used (read & write) YAML: YAML is a superset of JSON, but easier to read (read & write, comparison of JSON and YAML...
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Pandas - Get first row value of a given column

... I'm looping through a bunch of .csv files and reading the first value of a certain column in each. For some reason which I can't explain instead of returning the value this sometimes returns the index along with the value which messes up processing. I resor...
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Getting the location from an IP address [duplicate]

... I'm after and you can get it to return in multiple formats, json, xml and csv. $location = file_get_contents('http://freegeoip.net/json/'.$_SERVER['REMOTE_ADDR']); print_r($location); This will give you all of the things you could possibly want: { "ip": "77.99.179.98", "country_co...
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Why are empty strings returned in split() results?

...isely maps the semantics of all kinds of delimiter-joined records (such as csv file lines [[net of quoting issues]], lines from /etc/group in Unix, and so on), it allows (as @Roman's answer mentioned) easy checks for (e.g.) absolute vs relative paths (in file paths and URLs), and so forth. Another ...
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Difference between \n and \r?

...ere still some applications using \r - e.g. MS Office 2011 Excel: Saving a CSV (with all default settings) - will save an ISO-8859-1 encoded file with \r-line endings. – CodeBrauer Jul 11 '17 at 12:48 ...
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Get size of all tables in database

... You can also export the list in a CSV file by using an utility like NirSoft SysExporter: nirsoft.net/utils/sysexp.html – Max May 28 at 15:44 ...
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What parameters should I use in a Google Maps URL to go to a lat-lon?

...le times. via= Allows you to insert via points in directions. Must be in CSV format. For example, via=1,5 addresses 1 and 5 will be via points without entries in the sidebar. The start point (which is set as 0), and 2, 3 and 4 will all show full addresses. doflg= Changes the units used to measur...
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How do I switch to another subversion branch in Intellij?

... The user expect similar experience from IDEA across different CSV, which is hard to do cause SVN approach looks "dumb" from GIT prospective. The confusion is in that "same experience" expectation from IDEA magic. – smile-on May 29 '15 at 13:28 ...
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Reading Excel files from C#

...port.Tables[0]; #region Commented code for importing data from CSV file. // string strConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;" +"Data Source=" + System.IO.Path.GetDirectoryName(fullFileName) +";" +"Extended Properties=\"Text;HDR=YES;FMT=Delimited\""...