如何制作这样的节目。???
输入:4
*
* *
* *
* * * *
我很想知道如何做到这一点,它整周都在困扰我,但这只是一个额外的信用问题,所以我的老师从未解释过如何做到这一点! :( http://i.stack.imgur.com/qlyGu.jpg
答案 0 :(得分:0)
我认为尝试这会很有趣,这是我的解决方案:
PROMPT_MSG = "Please enter a whole number, greater than 1"
PROMPT_MSG_ERR = "Oops! Please try again.."
def validate_input(input):
try:
assert int(input) > 1
return int(input)
except (ValueError, AssertionError) as e:
print PROMPT_MSG_ERR + "\n"
main()
def main():
user_input = raw_input("{0}: ".format(PROMPT_MSG))
valid_input = validate_input(user_input)
if valid_input:
print "{0}*".format(" " * valid_input)
for i in range(0, valid_input)[1:-1]:
print "{0}*{1}*".format(
(" " * (valid_input - i)),
(" " * (i + (i-1))),
)
print " *" * valid_input
if __name__ == '__main__':
main()