结合范围和数字列表的python [英] python combining a range and a list of numbers

问题描述

range(5, 15) [1, 1, 5, 6, 10, 10, 10, 11, 17, 28]
range(6, 24) [4, 10, 10, 10, 15, 16, 18, 20, 24, 30]
range(7, 41) [9, 18, 19, 23, 23, 26, 28, 40, 42, 44]
range(11, 49) [9, 23, 24, 27, 29, 31, 43, 44, 45, 45]
range(38, 50) [1, 40, 41, 42, 44, 48, 49, 49, 49, 50]

我从功能的打印命令中获得上述支出.我真正想要的是范围的组合列表，例如，在顶行5,6,7 ... 15,1、1,5,6等. 输出范围来自

I get the above outpout from a print command from a function. What I really want is a combined list of the range, for example in the top line 5,6,7...15,1,1,5,6 etc. The output range comes from

range_draws=range(int(lower),int(upper))

我天真地认为会给出一个范围.其他数字来自切片列表.

which I naively thought would give a range. The other numbers come from a sliced list.

有人可以帮助我获得预期的结果吗?

Could someone help me to get the desired result.

推荐答案

range()函数返回特殊的范围对象保存在内存中(只有开始，结束和步长大小时，无需将所有数字保留在内存中).将其投射到列表以扩展"它:

The range() function returns a special range object to save on memory (no need to keep all the numbers in memory when only the start, end and step size will do). Cast it to a list to 'expand' it:

list(yourrange) + otherlist

引用文档:

range 类型相对于常规 list 或

The advantage of the range type over a regular list or tuple is that a range object will always take the same (small) amount of memory, no matter the size of the range it represents (as it only stores the start, stop and step values, calculating individual items and subranges as needed).

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