```python
# 固定列表
arr = list()
for i in range(0, 50000, 1000):
    if i == 0:
        continue
    temporary_arr = list(range(0, i))
    random.shuffle(temporary_arr)
    arr.append(temporary_arr)

arr_Quick = arr[:]
arr_Merge = arr[:]
arr_Insertion = arr[:]

上面，arr_Quick 变化，arr也会发生变化