输出2014 但代码中不允许有任何数字！（Ruby版） 【转+译】

余烬之中

原帖(En):http://codegolf.stackexchange.co ... in-your-source-code

输出数字 2014 ，但是源代码中不允许有任何数字

当然如果你不懂任何编程语言甚至英语都不行就可以无视这个了

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开始！


[pre lang="ruby" line="1"]p Time.new.year[/pre]太简单 ;)[pre lang="ruby" line="1"]Happy = Time
Happy.new.year[/pre]这个不错，但是不够热情. 这样来:[pre lang="ruby" line="1"]Happy = Time
class Time; alias year! year; end

Happy.new.year![/pre]哎哟不错哦~不过还有更厉害的:[pre lang="ruby" line="1"]class Have; def self.a; A.new; end; end
class A; def happy; Time; end; end
class Time; alias year! year; end

Have.a.happy.new.year![/pre]这个好啊！不过语法不怎么对 我平常说话可不用打点：[pre lang="ruby" line="1"]def noop x = nil; end
alias a noop
alias happy noop
alias new noop
alias year! noop
def Have x
    p Time.new.year
end

Have a happy new year![/pre]哈哈，停不下来了：[pre lang="ruby" line="1"]def noop x = nil; end
eval %w[we wish you a merry christmas! christmas and a happy new].map{|x|"alias #{x} noop"}*"\n"
def year!; p Time.new.year; end

we wish you a merry christmas! we wish you a merry christmas!
we wish you a merry christmas and a happy new year![/pre]

祝大家新年快乐！

myownroc

VB用asc函数就可以了...
Ruby目测也可以

不是马甲

直接获取系统年份来输出那？

余烬之中

对了 刚看到一位仁兄这样来：
[pre lang="ruby" line="1"]'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'.length[/pre]
汗一个

然后除了ruby,其他的语言也有很多奇葩
比如最简短的源代码（长度为0！）用的是Python3.4.0b2（特别强调是3.4.0b2）
打开Python3.4.0b2就会自带提示
[pre lang="Python" line="1"]% python3.4  
Python 3.4.0b2 (v3.4.0b2:ba32913eb13e, Jan  5 2014, 11:02:52)
[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> [/pre]
有没有看到那个2014？

在C语言中 源代码写
[pre lang="C" line="1"];#[/pre]
编译会出错 然后提示
[pre lang="ruby" line="1"]testvc.cpp(1) : error C2014: preprocessor command must start as first nonwhite space[/pre]
呵呵

另外一个用Go语言的也是一样的思路
[pre lang="Go" line="1"]—[/pre]
[pre lang="ruby" line="1"]can't load package: package :
prog.go:1:1: illegal character U+2014 '—'[/pre]

英文原帖1L给了 有兴趣自己去看吧 ; )

不是马甲

余烬之中 发表于 2014-1-24 22:04
对了 刚看到一位仁兄这样来：
'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ...

我没认真看给出来的= =还有一种类似输入 a b c d  每个字母分别对应相应X的个数

DeathKing

Yujing_Z
哈哈，Ruby-China果然还有6R的人……

yagami

  a = "比♂利"=="王"
  b = a.to_s.size - (!a).to_s.size
  p (b<<b).to_s + (b>>b).to_s + b.to_s + (b<<b<<b).to_s

英顺的马甲

print "MjAxNA==".unpack('m').first

satgo1546

[pre lang="ruby" line="1"]File.open("newyear.txt", "r") { |f| $number = f.read.to_i }
puts $number[/pre]然后newyear.txt里是“2014”……

1. irb(main):002:0> %x(date /t)
   
2. => "2014-01-26 星期日 \n"

复制代码

于是[pre lang="ruby" line="1"]puts %x(date /t)[0, 4][/pre]
EDIT：上面那个代码里有数字……
EDIT2：第二个代码没有数字……

---

新研究了一种：[pre lang="ruby" line="1"]$r = 0
"Happy new year!   ,     Yay!".each_byte { |b| $r += b }
puts $r[/pre]

---

[pre lang="ruby" line="1"]puts "BBC".to_i("\r".ord)[/pre]↑新加一只.w. @余烬之中
第二种重新修改了一下：[pre lang="ruby" line="1"]puts %x(date /t)[/\d\d\d\d/][/pre]