Last trade war had no impact on the Chinese economy, absurd to believe this one would either, now that the gap is even wider.
China will probably preemptively pressure the oligarchs. And end Ukraine since Trump is seemingly weak on that, putting Russia more in control of the western front and applying heavy pressure to EU + Israel.
Trump is not necessarily more hostile to China than the DNC. If anything, Trump is consistently seen as less revanchist. American revanchism is by far the no1 threat to the US-China relation, not trade issues.
To be frank if US was not a political (through stealing the governments of other nations and forming anti China coalitions), military (through outsized military letting them build an army even larger than China's) and territorially revanchist (by building up their own Crimea/Donbass type invasion against China) threat, US would just be another India or Indonesia. Big economy and population, but too far behind, too uninnovative and too slow growing to bother China. Those countries are entitled to their own protectionism if they want. It only hurts them more in the end anyways.
So if Trump puts US in isolationism and ends revanchism, I think China can give a lot of leeway to how he handles domestic economic policy.