python-range

works only with integers

range (start, stop[, step])

range(1,5) #代表从1到5(不包含5) [1, 2, 3, 4]
range(1,5,2) #代表从1到5,间隔2(不包含5) [1, 3]
range(5) #代表从0到5(不包含5) [0, 1, 2, 3, 4]

for i in range(6):
print(i, end=', ')

Python range() example to print numbers from range 0 to 6
0, 1, 2, 3, 4, 5,

for idx in range(2, 9, 1):
print('{}'.format(idx))

输出数值 2-8