想得到其中的port 6667的值
>>> message = '''{\r\n"success":"true",\r\n"statuscode":"200",\r\n"message":"register success",\r\n"ip":"192.168.0.2",\r\n"port":6667\r\n}\r\n'''
>>> print(message)
{
"success":"true",
"statuscode":"200",
"message":"register success",
"ip":"192.168.0.2",
"port":6667
}
>>> type(message)
<class 'str'>