Question

python代码问题

为什么我运行以下这个代码会返回错误?问题到底出在哪里?

Answer 1

1. 没有按格式缩进
2. 抛出的异常应为SyntaxError
3. if __name__ == "__main__": 这里应该是双下划线

#dog.py
def doggie():
try:
age = input("enter your age (in human years):")
print
if age < 0:
print "negative age!? i don't think so."
elif age < 3 or age > 110:
print "frankly,i don't believe you."
else:
print "that's",age*7," in dog years"
input('press return')
except SyntaxError:
print "why didn't you type anything?try again"
if __name__ == "__main__":
doggie()

Answer 2

if elif没有缩进

Answer 3

能写出这类复杂的代码，怎么会不知道python是要求缩进的呢？