大约有 22,000 项符合查询结果（耗时：0.0456秒） [XML]
How to read lines of a file in Ruby
... to Linux standard "\n" before parsing the lines.
To support the "\r" EOL character along with the regular "\n", and "\r\n" from Windows, here's what I would do:
line_num=0
text=File.open('xxx.txt').read
text.gsub!(/\r\n?/, "\n")
text.each_line do |line|
print "#{line_num += 1} #{line}"
end
Of...
How to get primary key column in Oracle?
...e which is called test and then query
create table test
(
id int,
name varchar2(20),
city varchar2(20),
phone int,
constraint pk_id_name_city primary key (id,name,city)
);
SELECT cols.table_name, cols.column_name, cols.position, cons.status, cons.owner FROM all_constraints cons, all_cons_columns c...
Parse RSS with jQuery
...
Why the $this.find("link").text() always returns empty string ''?
– Jeff Tian
Oct 3 '14 at 11:56
@...
GitHub README.md center image
...
This works great, but using an anchor (#) over query string (?) is probably a better solution as I posted in this answer: stackoverflow.com/questions/255170/markdown-and-image-alignment/… - however I don't believe the github readme.md supports defining css.
...
Array.Add vs +=
...e tried this. I create it using New-Object System.Collections.Generic.List[string] but then if I do .GetType, it tells me it is an array.
– Preza8
Jun 12 '17 at 12:35
1
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How do I toggle an element's class in pure JavaScript?
...e seperators. for example it doesn't work if class name contain dash ("-") char: btn, btn-red will both match'\\b' + 'btn' + '\\b' !!
– S.Serpooshan
Feb 5 '19 at 6:47
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What is the fastest way to check if a class has a function defined?
...
The responses herein check if a string is the name of an attribute of the object. An extra step (using callable) is needed to check if the attribute is a method.
So it boils down to: what is the fastest way to check if an object obj has an attribute attrib...
Python argparse: How to insert newline in the help text?
...s its own _split_lines method, so that any formatting done to e.g. version strings is preserved:
parser.add_argument('--version', '-v', action="version",
version="version...\n 42!")
share
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Why is it impossible to override a getter-only property and add a setter? [closed]
...or the purpose of serialization.
interface ITest
{
// Other stuff
string Prop { get; }
}
// Implements other stuff
abstract class ATest : ITest
{
abstract public string Prop { get; }
}
// This implementation of ITest needs the user to set the value of Prop
class BTest : ATest
{
st...
How to import an excel file in to a MySQL database
... to import spreadsheet data into a MySQL database that doesn't rely on any extra software. Let's assume you want to import your Excel table into the sales table of a MySQL database named mydatabase.
Select the relevant cells:
Paste into Mr. Data Converter and select the output as MySQL:
Change...