code: def create_domain(self, name, body):
          
          url = '{0}/domain/{1}'.format(self.server, name)
          return self.__post(url, body)
docs: 创建域名，文档 https://developer.qiniu.com/fusion/api/4246/the-domain-name
  
          Args:
             name:     域名, 如果是泛域名，必须以点号 . 开头
             bosy:     创建域名参数
          Returns:
             {}