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Accessing the index in 'for' loops?
... an index variable (which you would normally use in languages such as C or PHP), is considered non-pythonic.
The better option is to use the built-in function enumerate(), available in both Python 2 and 3:
for idx, val in enumerate(ints):
print(idx, val)
Check out PEP 279 for more.
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App Inventor 2 拓展参考文档 · App Inventor 2 中文网
...制数据
【数据库】LeanDB 数据库扩展
【数据库】MySQL + php后端数据库
【数据库】MongoDB + php后端数据库
您的改进建议 联系方式： 不需要回复的可留空~ 意见反馈（300字以内）：...
Get properties and values from unknown object
From the world of PHP I have decided to give C# a go. I've had a search but can't seem to find the answer of how to do the equivalent to this.
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App Inventor 2 拓展参考文档 · App Inventor 2 中文网
...制数据
【数据库】LeanDB 数据库扩展
【数据库】MySQL + php后端数据库
【数据库】MongoDB + php后端数据库
您的改进建议 联系方式： 不需要回复的可留空~ 意见反馈（300字以内）：...
What's to stop malicious code from spoofing the “Origin” header to exploit CORS?
... secure your site. If you are serving protected data, use cookies or OAuth tokens or something other than the Origin header to secure that data. The Access-Control-Allow-Origin header in CORS only dictates which origins should be allowed to make cross-origin requests. Don't rely on it for anything m...
Encoding Javascript Object to Json string
... @TomášZato: Why specifically would it be? JSON.stringify predates PHP's json_encode, if that's what you're alluding to.
– Dave Ward
Oct 20 '14 at 0:37
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Objective-C ARC: strong vs retain and weak vs assign
... don't point to it anymore"
in other words " I'am the owner, you cannot dealloc this before aim fine with that same as retain"
You use strong only if you need to retain the object.
By default all instance variables and local variables are strong pointers.
We generally use strong for UIViewControlle...
What is that “total” in the very first line after ls -l? [closed]
...he files with a line
`total BLOCKS', where BLOCKS is the total disk allocation for all
files in that directory.
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Semantic Issue: Property's synthesized getter follows Cocoa naming convention for returning 'owned'
...hip of an object if you create it using a method whose name begins with “alloc”, “new”, “copy”, or “mutableCopy”.
A property named newTitle, when synthesised, yields a method called -newTitle, hence the warning/error. -newTitle is supposed to be a getter method for the newTitle pro...
In Android, how do I set margins in dp programmatically?
...droid:layout_margin="10dp", the child is pleading the parent view group to allocate space that is 10dp bigger than its actual size. (padding="10dp", on the other hand, means the child view will make its own content 10dp smaller.)
Consequently, not all ViewGroups respect margin. The most notorious e...