如何分割数字格式？

Question

例如：

12000 = 12 000
5000 = 5 000
1000000 = 1 000 000
20000000 = 20 000 000

没有javascript：）

Answer 1

使用number_with_delimiter(12000, :delimiter => ' ')

Answer 2

Hiya就是你要找的东西：

http://api.rubyonrails.org/classes/ActionView/Helpers/NumberHelper.html

like - number_to_currency（1234567890.506，：locale =＆gt;：fr）＃=＆gt; 1 234 567 890,51€

希望这会有所帮助，干杯！

Answer 3

在问题要求发生变化之前：

number = 12000
number_to_currency(number, :precision => 0, :unit => "", :delimiter =>  number.to_s.length > 4 ? " " : "") # 12 000

number = 5000
number_to_currency(number, :precision => 0, :unit => "", :delimiter =>  number.to_s.length > 4 ? " " : "") # 5000

number = 1000000
number_to_currency(number, :precision => 0, :unit => "", :delimiter =>  number.to_s.length > 4 ? " " : "") # 1 000 000

number = 20000000
number_to_currency(number, :precision => 0, :unit => "", :delimiter =>  number.to_s.length > 4 ? " " : "") # 20 000 000

问题要求发生变化后：

number_to_currency(number, :precision => 0, :unit => "", :delimiter =>  " ")

Answer 4

纯Ruby：

"20000000".reverse.chars.each_slice(3).map(&:join).join(' ').reverse

所以一定要使用辅助方法。