列表追加不工作
问题描述:
def get(i, x):
i = 0
numbers = []
while i < x:
print ('At the top i is %d' % (i))
numbers.append(i)
i = i + 1
print ("Numbers now: "), numbers
print ("At the bottom i is %d" % (i))
print ("The numbers: ")
for num in numbers:
print (num)
get(1,6)
所以,当我调用该函数是这样的结果:列表追加不工作
At the top i is 0
Numbers now:
At the bottom i is 1
At the top i is 1
Numbers now:
At the bottom i is 2
At the top i is 2
Numbers now:
At the bottom i is 3
At the top i is 3
Numbers now:
At the bottom i is 4
At the top i is 4
Numbers now:
At the bottom i is 5
At the top i is 5
Numbers now:
At the bottom i is 6
The numbers:
0
1
2
3
4
5
那么,为什么"Numbers now: "
没有显示什么? print
声明,append
函数还是有什么问题?我迷路了,感谢任何帮助。
答
您需要在打印语句的括号内包含numbers
。
print ("Numbers now: ", numbers)
,而不是print ("Numbers now: "), numbers
因为它应该是右括号内) –
感谢的人,顺便说一下,为什么我一直都是downvoted呢? – Dan
我不是downvoter,但也许这是因为在Python 3.x中'print'是一个**函数**,而不是一个语句,因此只能输出它作为参数传递的东西......或者是因为它好像你应该能够自己解决这个问题。 – martineau