a = 'test'
print(a[0:1])


a = [2, 4,6,7,8,4,5,6,8]
"""
栈：每次弹出a[0], 删除它
队列：每次弹出a[-1], 删除它
"""
print(a[-1])
del a[-1]
print(a)

print(a[0])
del a[0]
print(a)
for i in range(1, -1, -1):
    print(i)

from Sorting.sort_mine import QuickSort


print(QuickSort().quick_sort([4,6,7,8,4,5,6,8]))