ruby 变量有关问题
ruby 变量问题
def as(flow)
flow.shift
flow
end
flow=["1","2","3","4"]
p as(flow)
p flow
怎么样才能让flow的输出值还是["1","2","3","4"]啊？
就是怎么才能让flow成为全局变量。
------解决方案--------------------
什么意思阿？flow.shift就是将数组的第一号元素去掉，所以你这肯定就是["2","3","4"]
要想按照原来的输出你得用个循环了
------解决方案--------------------
def as(flow)
flow.shift
flow
end
flow=["1","2","3","4"]
p as(flow)
p flow
怎么样才能让flow的输出值还是["1","2","3","4"]啊？
就是怎么才能让flow成为全局变量。
------解决方案--------------------
什么意思阿？flow.shift就是将数组的第一号元素去掉，所以你这肯定就是["2","3","4"]
要想按照原来的输出你得用个循环了
------解决方案--------------------
- Perl code
def as(flow) tmp = flow.dup tmp.shift flow end