jackfrued / jackfrued/Python-100-Days
集合排序的问题
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Description
在练习集合的时候，发现一个无法理解也无法解决的集合内元素的排序问题，望有大神帮忙解释一下
我从一个顺序的集合，通过平方的关系生成一个新的集合，为什么新集合的元素排序和原来的集合毫无关系？
代码如下
set1 = set(range(1, 10))
print(set1)
set2 = set()
for elem in set1:
print(elem)
set2.add(elem ** 2)
print(set2)
执行结果如下
{1, 2, 3, 4, 5, 6, 7, 8, 9}
1
{1}
2
{1, 4}
3
{1, 4, 9}
4
{16, 1, 4, 9}
5
{1, 4, 9, 16, 25}
6
{1, 4, 36, 9, 16, 25}
7
{1, 4, 36, 9, 16, 49, 25}
8
{64, 1, 4, 36, 9, 16, 49, 25}
9
{64, 1, 4, 36, 9, 16, 49, 81, 25}
可以看到即使set1是有序的，在生成set2的过程中，新元素的位置完全是随机的，这是什么原因？
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Assessment
- Tech stack
- python
- Domain
- documentation
- Issue type
- Documentation
- Difficulty
- 2/5
- Estimated time
- 1-3 hours
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 35/100