Method update

updater.py:18–35

(self, path:str)

        self.isNeedUpdate = False

    def update(self, path:str) -> Tuple[bool,List[Rule]]:
        async def _update():
            # 并发执行所有下载任务，并直接拿到结果
            tasks = [self.__Download(rule, path) for rule in self.ruleList]
            results = await asyncio.gather(*tasks)

            # 更新规则状态
            for new in results:
                for rule in self.ruleList:
                    if new.name == rule.name:
                        rule.latest = new.latest
                        rule.update = new.update
                        if rule.update:
                            self.isNeedUpdate = True   # 只要有一个需要更新就标记
                        break
            return self.isNeedUpdate, self.ruleList

        return asyncio.run(_update())

    def __CalcFileSha256(self, filename):
        with open(filename, "rb") as f: