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How to print the contents of RDD?
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You can convert your RDD to a DataFrame then show() it.
// For implicit conversion from RDD to DataFrame
import spark.implicits._
fruits = sc.parallelize([("apple", 1), ("banana", 2), ("orange", 17)])
// convert to DF then show it...
How do I find out which process is locking a file using .NET?
I've seen several of answers about using Handle or Process Monitor , but I would like to be able to find out in my own code (C#)
which process is locking a file.
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汇编语言超浓缩教程（汇编入门必备） - C/C++ - 清泛网 - 专注C/C++及内核技术
...有ASCII码
当我们想任意显示字符串，如：UNDERSTAND？，则可以使用DOS21H号中断9H号功能。输入下行程序，存盘并执行看看：
1.输入 A100
MOV DX,109 ；DS:DX ＝ 字符串的起始地址
MOV AH,9 ；DOS的09h功能调用
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Sending data back to the Main Activity in Android
I have two activities: main activity and child activity.
When I press a button in the main activity, the child activity is launched.
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Hidden features of C
I know there is a standard behind all C compiler implementations, so there should be no hidden features. Despite that, I am sure all C developers have hidden/secret tricks they use all the time.
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Fastest way to get the first object from a queryset in django?
... @Ben: QuerySet.__nonzero__() is never called since the QuerySet is converted to a list before checking for trueness. Other exceptions may still occur however.
– Ignacio Vazquez-Abrams
Feb 26 '11 at 0:07
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Best way to hide a window from the Alt-Tab program switcher?
I've been a .NET developer for several years now and this is still one of those things I don't know how to do properly. It's easy to hide a window from the taskbar via a property in both Windows Forms and WPF, but as far as I can tell, this doesn't guarantee (or necessarily even affect) it being hid...
What does denote in C# [duplicate]
I'm new to C# and directly diving into modifying some code for a project I received. However, I keep seeing code like this :
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Splitting a string into chunks of a certain size
...e));
}
Please note that additional code might be required to gracefully handle edge cases (null or empty input string, chunkSize == 0, input string length not divisible by chunkSize, etc.). The original question doesn't specify any requirements for these edge cases and in real life the requirement...
scipy.misc module has no attribute imread?
...mageio.core.util.Array. If you want/need a numpy.ndarray and don't want to convert it, use matplotlib.pyplot.imread, as it also returns a numpy.ndarray.
– Stefan
Jan 20 '19 at 14:55
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