我有一个array or list
, 现在我想对数组进行一些更改并将其放回arr
variable/list
。我是否使用额外的空间?或者它是相同的变量再次更新?更新列表是否需要额外的空间?
arr = [1,2,3,4]
print arr[2:] + arr[:2] # Is is using extra space
#or
arr = arr[2:] + arr[:2] # Is is using extra space
#or
arr = [1,2,3,4]
arr = arr # are not they both same? LHS arr is different from RHS arr
你是什么意思与 “LHS ARR是RHS ARR不同”? –