3 packets transmitted, 3 received, 0% packet loss, time 2003ms \n rtt min/avg/max/mdev = 6.481/6.860/7.104/0.288 ms根据这个帮我写一个fsm，取0丢包，min值，max值，

以下是一个简单的FSM，用于处理收到的ping命令结果：

class PingFSM:
    def __init__(self):
        self.state = "INIT"
        self.packet_loss = None
        self.rtt_min = None
        self.rtt_max = None

    def process_ping_output(self, output):
        if self.state == "INIT":
            if "0% packet loss" in output:
                self.packet_loss = 0
                self.state = "RTT_MIN"
        elif self.state == "RTT_MIN":
            match = re.search("rtt min/avg/max/mdev = (\d+\.\d+)/", output)
            if match:
                self.rtt_min = float(match.group(1))
                self.state = "RTT_MAX"
        elif self.state == "RTT_MAX":
            match = re.search("rtt min/avg/max/mdev = \d+\.\d+/[\d\.]+/(\d+\.\d+)/", output)
            if match:
                self.rtt_max = float(match.group(1))
                self.state = "DONE"

    def get_results(self):
        if self.state != "DONE":
            return None
        return {
            "packet_loss": self.packet_loss,
            "rtt_min": self.rtt_min,
            "rtt_max": self.rtt_max
        }

使用方法：

output = "3 packets transmitted, 3 received, 0% packet loss, time 2003ms \n rtt min/avg/max/mdev = 6.481/6.860/7.104/0.288 ms"
fsm = PingFSM()
fsm.process_ping_output(output)
results = fsm.get_results()
print(results)  # 输出 {"packet_loss": 0, "rtt_min": 6.481, "rtt_max": 7.104}