大约有 13,700 项符合查询结果(耗时:0.0359秒) [XML]
Create an empty list in python with certain size
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you can do this: a = [0 for _ in range(10)]
– Kamiar
Dec 19 '18 at 21:55
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How do I clone a Django model instance object and save it to the database?
...imary key of your object and run save().
obj = Foo.objects.get(pk=<some_existing_pk>)
obj.pk = None
obj.save()
If you want auto-generated key, set the new key to None.
More on UPDATE/INSERT here.
Official docs on copying model instances: https://docs.djangoproject.com/en/2.2/topics/db/que...
How to add facebook share button on my website?
...;a href="https://www.facebook.com/sharer/sharer.php?u=example.org" target="_blank">
Share on Facebook
</a>
Documentation can be found at https://developers.facebook.com/docs/reference/plugins/share-links/
share
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Recursively remove files
Does anyone have a solution to remove those pesky ._ and .DS_Store files that one gets after moving files from a Mac to A Linux Server?
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How to list the contents of a package using YUM?
... Why install a new package when you can use rpm -ql $PACKAGE_NAME?
– isapir
Apr 8 '19 at 17:42
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show 1 more comment
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What is the difference between ManualResetEvent and AutoResetEvent in .NET?
...ass ManualResetEventSample
{
private readonly ManualResetEvent _manualReset = new ManualResetEvent(false);
public void RunAll()
{
new Thread(Worker1).Start();
new Thread(Worker2).Start();
new Thread(Worker3).Start();
Consol...
What is the difference between attribute and property? [closed]
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In Python...
class X( object ):
def __init__( self ):
self.attribute
def getAttr( self ):
return self.attribute
def setAttr( self, value ):
self.attribute= value
property_name= property( getAttr, setAttr )
A property is a s...
SQL Server - copy stored procedures from one db to another
...ResiDazeMaster].[sys].[procedures] p
INNER JOIN [ResiDazeMaster].sys.sql_modules m ON p.object_id = m.object_id
OPEN c
FETCH NEXT FROM c INTO @sql
WHILE @@FETCH_STATUS = 0
BEGIN
SET @sql = REPLACE(@sql,'''','''''')
SET @sql = 'USE [' + @Name + ']; EXEC(''' + @sql + ''')'
EXEC(@sql)
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How to organize a node app that uses sequelize?
...e is cached after the first execution. nodejs.org/api/modules.html#modules_caching
– Casey Flynn
Mar 29 '13 at 7:17
2
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Sorting Python list based on the length of the string
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def lensort(list_1):
list_2=[];list_3=[]
for i in list_1:
list_2.append([i,len(i)])
list_2.sort(key = lambda x : x[1])
for i in list_2:
list_3.append(i[0])
return list_3
This works for me!
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