#Program to print fibonacci until a range.
print "Fibonacci Series"
print "Enter a range"
range = raw_input()
first=1
second =1
print first
print ", "
print second
print ", "
third = 0
while(third < range):
third=first+second
print third
print ", "
first = second
second = third
#End of program
此处,程序会询问用户是否有范围并将该系列打印到该范围。但是,我得到了无限循环系列。任何人都可以帮助我吗?
答案 0 :(得分:2)
range = raw_input()
将range
设为字符串,例如它正在分配range = '5'
而不是range = 5
。
因此,在Python 2.x *中,比较third < range
将始终为True
,因为整数总是比字符串少:
>>> 10 < '5'
True
最小修复是将输入转换为整数:
range = int(raw_input())
但是,请注意range
is a built-in function,因此您应该为该变量选择一个不同的名称。
* 请注意,在3.x中将字符串与整数进行比较会导致错误:
>>> 10 < '5'
Traceback (most recent call last):
File "<pyshell#0>", line 1, in <module>
10 < '5'
TypeError: unorderable types: int() < str()