leetcode有效取消IP地址Leetcode轻松1108给定一个有效的(IPv4) IP地址，返回该IP地址的去角版本。去污点的IP地址会替换每个句点“.”为”[.]”。

class解决方案：

def defangIPaddr(self, address: str) -> str:

answerString = \"\"

for character in address:

    if character == \".\":

        answerString += \"[.]\"

    else:

        answerString += character

return answerString