answer=int(raw_input("enter the number1:"))
if answer>=10:
print "you got at least 10!"
elif answer>=5:
print "you got at least 5!"
elif answer>=3:
print "you got at least 3!"
else:
print"you got less than 3!"#以上所有都为假，可以使用else给出一个结果
原文：http://huzhongliang.blog.51cto.com/1817180/1890477