Groovy&Grails-技术问答-集合数据类型Ranges

定义一个范围

def ranges = start..end

创建一个ranges

def range = 1..10
assert range == [1,2,3,4,5,6,7,8,9,10]

range = 'a'..'c'
assert range == ['a','b','c']

range = 1..<8
assert range == [1,2,3,4,5,6,7]

遍历ranges

(1..5).each{
    println it
}

使用ranges创建一个list

assert [*1..4] == [1,2,3,4]
assert [1,*2..4] == [1,2,3,4]