Question

我有“钟表”=“xyz123”,我希望照样打印。

The IRB is giving me an unexpected output. Please find the same below:-

1.9.2p290 :003 > str = "xyz123"
 => "xyzS" 
1.9.2p290 :004 >

关于我如何能够让国际职工会印刷原体,即“xyz123”。

谢谢。

UPDATE :

我试图放弃它,但出于某种原因,这似乎并不简单。请参看下文所述审判:

1.9.2p290 :004 > str = "xyz  123"
 => "xyz  123" 
1.9.2p290 :005 > str = "xyz \ 123"
 => "xyz \ 123" 
1.9.2p290 :006 > str = "xyz \ 123"
 => "xyz \ 123" 
1.9.2p290 :007 >

Answer 1

UPDATED的答复:

逃跑总是在简易废墟法中工作,但并不总是在“红".”中工作。因此,我建议你写一个单位测试:

# escape_token_test.rb 
require  test/unit 
class EscapeTokenTest < Test::Unit::TestCase
  def test_how_to_escape
    hi = "hi\backslash"
    puts hi
  end 
end

并且将产生以下结果:

hiackslash

参看@pst的评论。

Answer 2

The backslash character is an escape character. You may have seen " " be used to display a new line, and that is why. "123" evaulates the ASCII code for 83, which is "S". To print a backslash use 2 backslashes. So you could use str = "xyz\123".

Answer 3

www.un.org/spanish/ecosoc 如何打印回击?

Use 2 backslashes, e.g. "xyz\123"

www.un.org/spanish/ecosoc 为什么xyz123>>?

In a double-quoted string, nn is an octal escape.

“Table

Thomas, D.(2009年),《方案规划》,Ruby, p.329

So, octal 123
= (64 * 1) + (8 * 2) + 3
= decimal 83
= ASCII S

Answer 4

它是简单的......审判倾销功能:

mystring = %Q{"Double Quotes"}
p mystring.dump
=> ""\"Double Quotes\"""
p mystring
=>""Double Quotes""

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