You're still going to have to make the same number of server round-trips to update the dispenser object or fetch the USN value.

您仍然需要多次到达服务器以更新分发器对象或获取usn值。

youdao

In that case, it will usually cost three round-trips to do an update (the initial failed update attempt, the fetch of the current counter value, and the final successful update).

对于这种情况，通常需要3次循环才能执行一次更新(首次更新尝试失败；获取当前的计数器值；最后成功更新)。

youdao

In that case, it will usually cost three round-trips to do an update (the initial failed update attempt, the fetch of the current counter value, and the final successful update).

对于这种情况，通常需要3次循环才能执行一次更新(首次更新尝试失败；获取当前的计数器值；最后成功更新)。

youdao