保存文件带时间戳

from datetime import datetime
current_time = datetime.now().strftime(‘%Y%m%d%H%M’)

import threading
_lock = threading.Lock()
LOG_DIR = 'bit_log'
os.makedirs(LOG_DIR, exist_ok=True)

def _log(msg: str):
    """带时间戳写日志（线程安全）"""
    day = datetime.date.today().strftime('%Y%m%d')
    log_path = os.path.join(LOG_DIR, f'{day}.log')
    ts = datetime.datetime.now().strftime('%Y-%m-%d %H:%M:%S.%f')[:-3]
    with _lock:                       # 保证多线程不串写
        with open(log_path, 'a', encoding='utf-8') as f:
            f.write(f'[{ts}] {msg}\n')
            f.flush()                 # 立即落盘，防止异常崩溃丢缓冲
            
_log(f"{name} ---- 解析失败")