1. 時(shí)間戳：使用當(dāng)前的時(shí)間戳作為ID的一部分。

2. 機(jī)器標(biāo)識：確保ID在多臺機(jī)器上唯一。

```python

import time

import threading

class IDGenerator:

def __init__(self, machine_id):

self.machine_id = machine_id

self.lock = threading.Lock()

self.sequence = 0

def _get_timestamp(self):

return int(time.time() 1000) 獲取當(dāng)前時(shí)間戳，單位毫秒

def _get_sequence(self):

with self.lock:

if self.sequence == 0:

time.sleep(0.001) 短暫休眠，等待下一秒

return self.sequence

def generate_id(self):

timestamp = self._get_timestamp()

machine_id = self.machine_id

sequence = self._get_sequence()

return f"{timestamp:016d