第二欄值Sort

 cars = [

    ["infiniti",2000],

    ["toyota",1000],

    ["smart",5000],

]

print(cars)

cars.sort()

# print(cars)

# print(sorted(cars,key=lambda car:car[1]))

print(cars)

n = len(cars)

for i in range(n):

    for j in range(i+1,n):

        if cars[i][1]>cars[j][1]:

            cars[i],cars[j]=cars[j],cars[i]

            

print(cars)