class Random

Public Class Methods

rand_str(length) click to toggle source

随机长度的字符串

# File lib/core_extend/random.rb, line 4
def self.rand_str(length)
  length.times.inject('') { |acc, i| acc+=(('a'..'z').to_a+('0'..'9').to_a)[(i+Random.rand(1000))%36]; acc }
end