你如何写在Ruby中的二进制文字 [英] How do you write a binary literal in ruby?
问题描述
大多数语言(包括红宝石)允许写入至少在三个基地一些文字:十进制,八和十六进制。在十进制的数字是平常的事情,并写(大多数)人自然写号,96写成 96
。由零pfixed数字$ P $是PTED为八进制通常跨$ P $为主:96将被写成 0140
。基于十六进制数字通常是美元的 0X
pfixed p $ 96就可以写成 0x60的
Most languages (Ruby included) allow number literals to be written in at least three bases: decimal, octal and hexadecimal. Numbers in decimal base is the usual thing and are written as (most) people naturally write numbers, 96 is written as 96
. Numbers prefixed by a zero are usually interpreted as octal based: 96 would be written as 0140
. Hexadecimal based numbers are usually prefixed by 0x
: 96 would be written as 0x60
.
现在的问题是:我可以写号为Ruby的二进制文字?怎么样?
The question is: can I write numbers as binary literals in Ruby? How?
推荐答案
使用0B preFIX
use 0b prefix
>> 0b100
=> 4
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