Groovy 模块¶
闭包¶
each方法¶
def nums = [1, 2, 3, 4, 5]
def doubles = []
nums.each { n -> // 箭头操作符
doubles << n * 2
}
assert doubles == [2, 4, 6, 8, 10]
collect方法¶
def nums = [1, 2, 3, 4, 5]
def doubles = nums.collect { it * 2 }
assert doubles == [2, 4, 6, 8, 10]