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Bubble Sort Homework
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The goal of bubble sort is to move the heavier items at the bottom in each round, while moving the lighter items up. In the inner loop, where you compare the elements, you don't have to iterate the whole list in each turn. The heaviest is already placed last. The swapped ...
Awk学习笔记 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...; break}}
{for ( x=3; x<=NF; x++)
if ($x==0){print "Get next item"; continue}}
next语句从输入文件中读取一行，然后从头开始执行awk脚本。如：
{if ($1 ~/test/){next}
else {print}
}
exit语句用于结束awk程序，但不会略过...
Jackson how to transform JsonNode to ArrayNode without casting?
...s;
Streams.stream(datasets.withArray("datasets").elements())
.forEach( item -> System.out.print(item.toString()) )
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How to make PyCharm always show line numbers
...rent document :D and tried on the options but didn't focus into Appearance item.
– m3nda
Aug 22 '15 at 6:45
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How to delete a record in Django models?
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If you want to delete one item
wishlist = Wishlist.objects.get(id = 20)
wishlist.delete()
If you want to delete all items in Wishlist for example
Wishlist.objects.all().delete()
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How to set initial size of std::vector?
I have a vector<CustomClass*> and I put a lot of items in the vector and I need fast access, so I don't use list. How to set initial size of vector (for example to be 20 000 places, so to avoid copy when I insert new)?
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How to do parallel programming in Python?
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Just lists I think. But you can just pass in dict.items() which will be a list of key value tuples
– Matt Williamson
Jun 10 '15 at 14:00
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Replacing .NET WebBrowser control with a better browser, like Chrome?
...ork and you can get some HTML5 and CSS3 support although IE9 lacks some of best CSS3 and HTML5 features. But I'm sure you could get IE10 running same way. The problem would be that target system would have to have IE10 installed, and since is still in preview on Windows 7 I would suggest against it....
How to decode Unicode escape sequences like “\u00ed” to proper UTF-8 encoded characters?
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fix json values,
it's add \ before u{xxx} to all +" "
$item = preg_replace_callback('/"(.+?)":"(u.+?)",/', function ($matches) {
$matches[2] = preg_replace('/(u)/', '\u', $matches[2]);
$matches[2] = preg_replace('/(")/', '&quot;', $matches[2]);
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How do I use pagination with Django class based generic ListViews?
...nt().sort_values(ascending=False).to_dict()
ipc = tuple(ipc.to_dict().items())
urlc = tuple(urlc.items())
pages = []
page_keys = ['page1', 'page2']
for obj, name in zip([urlc, ipc], page_keys):
paginator = Paginator(obj, 20)
page = self.request.GET.get(name)
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