#列表 list
l1 = list ("zhaoxiaobo")
print(type(l1),l1)
l7 = [1,2,3,4,5,6]
print(99 in l7)
print(6 in l7)




#运算
l5 = [1,2,3]
l6 = ["python","go"]
print(l5 + l6)
print(l5 * 3)

#常用方法
l11 = [1,2,3]
result = l11.pop()
print("l11",result,l11)



l12 = [1,2,3]
result =l12.pop(1)
print("l12",result,l12)

l13 =[1,2,"老六",3,4,"老六",5]
l13.remove("老六")
print(l13)




l14 = [2,23,14,34,17]
l14.sort()
print(l14)

l15 = [2,4,3,6,98]
l15.sort(reverse=True)
print(l15)

l16 = ["python","r","go"]
l16.sort(key=len)
print(l16)


l17 = [2,23,14,34,17,19,10]
l17 .reverse()
print(l17)

l18 =[
    [1,2,3],
    [4,5,6],
    [7,8,9]
]
print(l18[0][0])
l18.append([100,102,103])
print(l18)
l18[0].append(99)
print(l18)



l19 = []
for i in range(10):
    if i %2 == 0:
      l19.append(i)
print(l19)

l20 = []
for i in range(0,10,2):
    l20.append(i)
print(l20)

l21 = [i for i in  range(10) if i % 2 == 0]
print(l21)

l22 = [i for i in  range(0,10,2)]
print(l22)