复制key = "user.%s" % user_id user_blob = memcache.get(key) if user_blob is None: user = mysql.query("SELECT * FROM users WHERE user_id=\"%s\"",可伸 user_id) if user: memcache.set(key, json.dumps(user)) return user else: return json.loads(user_blob) 1.2.3.4.5.6.7.8.9.