2013-02-28 68 views

回答

4
rand(9)  # this generator a number between 0 to 8 
rand(0 .. 9) # this generator a number between 0 to 9 
rand(1 .. 50) # this generator a number between 1 to 50 
#rand(m .. n) # m is the start of generator number range, n is the end of generator number range 
+0

在你想要產生隨機數的地方使用rand。 – 2013-02-28 08:02:59

0

嘗試:

Array.new(5){rand 10}.join 

優勢:

上面的代碼將產生5位隨機數。您可以根據您想要的位數取代5

更多來自Generating Random Numbers in Ruby