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Two versions of python on linux. how to make 2.7 the default
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edited Oct 8 '13 at 19:47
answered Oct 8 '13 at 19:17
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How to generate a range of numbers between two numbers?
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28 Answers
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How to check iOS version?
...a comparison.
[[NSProcessInfo processInfo] operatingSystemVersion] in iOS 8 and above.
As of Xcode 9:
if (@available(iOS 9, *)) {}
The full answer …
In Objective-C, and Swift in rare cases, it's better to avoid relying on the operating system version as an indication of device or OS capabil...
Using awk to print all columns from the nth to the last
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edited Apr 8 '15 at 13:01
fedorqui 'SO stop harming'
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C#位运算符（C#按位与、按位或 等） - 更多技术 - 清泛网 - 专注C/C++及内核技术
...进行位逻辑非运算，结果等于10101010。用十进制表示就是~85等于176。
2、位逻辑与运算
位逻辑与运算将两个运算对象按位进行与运算。与运算的规则：1与1等于1，1与0等于0。
比如：10010001（二进制）&11110000等于10010000（二进...
Why should we NOT use sys.setdefaultencoding(“utf-8”) in a py script?
...allows you to switch from the default ASCII to other encodings such as UTF-8, which the Python runtime will use whenever it has to decode a string buffer to unicode.
This function is only available at Python start-up time, when Python scans the environment. It has to be called in a system-wide mo...
How to change the CHARACTER SET (and COLLATION) throughout a database?
...n a table (Mysql). He set it up with Latin collation, when it should be UTF8, and now I have issues. Every record with Chinese and Japan character turn to ??? character.
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Java 8 NullPointerException in Collectors.toMap
The Java 8 Collectors.toMap throws a NullPointerException if one of the values is 'null'. I don't understand this behaviour, maps can contain null pointers as value without any problems. Is there a good reason why values cannot be null for Collectors.toMap ?
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Counting inversions in an array
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edited Aug 29 '14 at 9:48
barghest
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answered Jun 21 '11 at 11:58
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