Python 迴圈結構 - for

range(終止值)，起始值0，遞增1
for i in range(5):
->
i = 0 1 2 3 4

range(起始值, 終止值)，遞增1
for i in range(2, 6):
->
i = 2 4 6 8

range(起始值, 終止值,增減值)
for i in range(100, 90, -3):
->
i = 100 97 94 91