大约有 40,000 项符合查询结果(耗时:0.0358秒) [XML]

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Get the string representation of a DOM node

...(el) == "<p>Test</p>" You'll find my jQuery plugin here: Get selected element's outer HTML share | improve this answer | follow | ...
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pandas: filter rows of DataFrame with operator chaining

... Since version 0.18.1 the .loc method accepts a callable for selection. Together with lambda functions you can create very flexible chainable filters: import numpy as np import pandas as pd df = pd.DataFrame(np.random.randint(0,100,size=(100, 4)), columns=list('ABCD')) df.loc[lambda ...
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How to catch SQLServer timeout exceptions

...= sql.CreateCommand(); cmd.CommandText = "DECLARE @i int WHILE EXISTS (SELECT 1 from sysobjects) BEGIN SELECT @i = 1 END"; cmd.ExecuteNonQuery(); // This line will timeout. cmd.Dispose(); sql.Close(); } catch (SqlException ex) { if (ex.Number == -2) { Console.WriteLine (...
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Random color generator

...rs. To ensure the colors are distinct I avoid using a random generator and select "evenly spaced" colors from the rainbow. This is perfect for creating pop-out markers in Google Maps that have optimal "uniqueness" (that is, no two markers will have similar colors). function rainbow(numOfSteps, ste...
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How to hide keyboard in swift on pressing return key?

...view controller.swift file is on the other. Click on a text field and then select from the right hand side utilities panel 'Show the Connection Inspector' tab. Control drag from the 'Did End on Exit' to the above function in your swift file. Repeat for any other textfield in that scene and link to t...
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Print all but the first three columns

...ents. We have asked the OP to choose a more correct answer, and he/she has selected mine. After some other contributors have edited my answer to reference there answer (see the history). Is it clear for you? What do you advice me to improve the understandability of my answer? Cheers ;-) ...
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string.ToLower() and string.ToLowerInvariant()

... cultures. A Frenchman does not write SÉLECTIONNEZ x DE books instead of SELECT X FROM books. However, in order for the above code to work, a Turkish person would need to write SELECT x FROM books WHERE Author LİKE '%Adams%' (note the dot above the capital i, almost impossible to see). This wou...
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Jquery: how to trigger click event on pressing enter key

...ve. Will this definitely work across all kind of devices having differing "selection" methods? – Jonny Oct 17 '19 at 9:10 add a comment  |  ...
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MySQL “incorrect string value” error when save unicode string in Django

...ASE `%s` CHARACTER SET 'utf8' COLLATE 'utf8_unicode_ci'" % dbname) sql = "SELECT DISTINCT(table_name) FROM information_schema.columns WHERE table_schema = '%s'" % dbname cursor.execute(sql) results = cursor.fetchall() for row in results: sql = "ALTER TABLE `%s` convert to character set DEFAULT C...
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Is there a way to ignore header lines in a UNIX sort?

...ugh sort. Note that this has the very specific advantage of being able to selectively sort parts of a piped input. all the other methods suggested will only sort plain files which can be read multiple times. This works on anything. ...