/// <summary> /// 获取一个锁（需要自己释放） /// </summary> /// <param name="lock">业务锁</param> /// <param name="key">锁定标识</param> /// <param name="expiration">锁定时间间隔</param> /// <returns>true:成功锁定; false:之前已被锁定</returns> public static async Task <bool> LockTakAsync(this ILock @lock, string key, TimeSpan expiration) => await @lock.LockTakeAsync(key, "1", expiration);