一个循环问题

Question

for i in range(0, 120, 60):
    print(i)

则会生成:

0
60

那么如何生成:

0
0
0
60
60
60

这样的三个一组的循环，不要是列表，是图片所示竖行的值，如何得到?

Answer 1

通过num 来控制重复的次数：

num = 3
for i in range(0,120,60):
    t = [i for j in range(num)]
    print t

Answer 2

print(i，i，i)

---

>>> sum([[i]*3 for i in range(0,120,60)],[])
[0, 0, 0, 60, 60, 60]

---

>>> def gen():
    for i in range(0,120,60):
        yield i
        yield i
        yield i

        
>>> for n in gen():
    print(n)

    
0
0
0
60
60
60
>>> 

Answer 3

for i in range(0,120,60):
    print(i)
    print(i)
    print(i)