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Calculate the execution time of a method
...aking method which copies data from a location to another. What's the best and most real way of calculating the execution time? Thread ? Timer ? Stopwatch ? Any other solution? I want the most exact one, and briefest as much as possible.
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Windbg Step 2 分析程序堆栈实战 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...内容是什么，这个时候，建议你用dc(display double-word values and ASCII characters)命令查看内存。
dc 000d1b90
000d1b90 000d1b9c 000d1be8 00000000 003a0045 ............E.:.
000d1ba0 0050005c 006f0072 0061004c 005c0062 \.P.r.o.L.a.b.\.
000d1bb0 00690057 0064006e 0067006...
How can I update a single row in a ListView?
...ave a ListView which displays news items. They contain an image, a title and some text. The image is loaded in a separate thread (with a queue and all) and when the image is downloaded, I now call notifyDataSetChanged() on the list adapter to update the image. This works, but getView() is gett...
How to save an HTML5 Canvas as an image on a server?
...u
// need is to return the url to the file, you just saved
// and than put the image in your browser.
});
Save base64 on your server as an image (here is how to do this in PHP, the same ideas is in every language. Server side in PHP can be found here):
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Keyboard shortcut to paste clipboard content into command prompt window (Win XP) [closed]
...re a keyboard shortcut for pasting the content of the clipboard into a command prompt window on Windows XP (instead of using the right mouse button)?
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pypi UserWarning: Unknown distribution option: 'install_requires'
...upport install_requires. setuptools does, also distribute (its successor), and pip (which uses either) do. But you actually have to use them. I.e. call setuptools through the easy_install command or pip install.
Another way is to import setup from setuptools in your setup.py, but this not standard...
“#include” a text file in a C program as a char[]
... $ xxd -i < file.txt > file.xxd $ echo ', 0' >> file.xxd and in the main.c char file_content[] = { #include "file.xxd" };
– ZeD
Jan 4 '09 at 16:10
3
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Pandas convert dataframe to array of tuples
I have manipulated some data using pandas and now I want to carry out a batch save back to the database. This requires me to convert the dataframe into an array of tuples, with each tuple corresponding to a "row" of the dataframe.
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Converting Long to Date in Java returns 1970
...time as long in milliseconds, not seconds. You need to multiply it by 1000 and make sure that you supply it as long.
Date d = new Date(1220227200L * 1000);
This shows here
Sun Aug 31 20:00:00 GMT-04:00 2008
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Reversing a linked list in Java, recursively
...t out, but you might find it easier to start from the bottom up, by asking and answering tiny questions (this is the approach in The Little Lisper):
What is the reverse of null (the empty list)? null.
What is the reverse of a one element list? the element.
What is the reverse of an n element list?...