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程序员之网络安全系列（五）：数字证书以及12306的证书问题 - 更多技术 - ...
...章就是数字签名, 那么”敏捷的水”就是颁发证书的机构CA(Certificate Authority)，也就是证书授权中心。
CA CA 是“Certificate Authority”的缩写，也叫“证书授权中心”。 它是负责管理和签发证书的第三方机构，就好比例子里面的“敏...
Why is the use of tuples in C++ not more common?
Why does nobody seem to use tuples in C++, either the Boost Tuple Library or the standard library for TR1? I have read a lot of C++ code, and very rarely do I see the use of tuples, but I often see lots of places where tuples would solve many problems (usually returning multiple values from functi...
Sublime Text from Command Line
...to know how to open rb files in it from the terminal. I saw What is the command to make Sublime Text my core editor? and I see that I can make Sublime my core editor, but I want to be able to type
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typedef struct vs struct definitions [duplicate]
I'm a beginner in C programming, but I was wondering what's the difference between using typedef when defining a structure versus not using typedef . It seems to me like there's really no difference, they accomplish the same goal.
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Obfuscated C Code Contest 2006. Please explain sykes2.c
How does this C program work?
4 Answers
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powershell - extract file name and extension
I need to extract file name and extension from e.g. my.file.xlsx. I don't know the name of file or extension and there may be more dots in the name, so I need to search the string from the right and when I find first dot (or last from the left), extract the part on the right side and the part on the...
Why do I get a SyntaxError for a Unicode escape in my file path?
The folder I want to get to is called python and is on my desktop.
7 Answers
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How do I do an OR filter in a Django query?
...ble to list the items that either a user has added (they are listed as the creator) or the item has been approved.
6 Answer...
Get statistics for each group (such as count, mean, etc) using pandas GroupBy?
I have a data frame df and I use several columns from it to groupby :
7 Answers
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How to get current timestamp in milliseconds since 1970 just the way Java gets
In Java, we can use System.currentTimeMillis() to get the current timestamp in Milliseconds since epoch time which is -
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