Overall it should benefit everyone in China as China is an exporting oriented economy and exporters will be earning more profit and in turn demanding more staff and paying higher salary. The goods directly imported from US will become more expensive, which probably means one would find similar goods from EU becoming more attractive.
Actually, since 2015, consumption has contributed more to the GDP than exports. China is moving from the classic Asian export-oriented economy.
Another significant development is export diversification. First, value-added percentage has risen. Second, more countries and regions have China as their largest trade partner. And, ideally, most of these countries/regions can rely on Yuan or their currencies to do trade with China.
Besides, US share in China's export has fallen continuously although it still occupies the highest percentage point.
So, for China, the way forward is to further diversify export markets, increase value-added content, and shift trade from USD to domestic currencies.
One cannot still escape from the USD, especially a country like China which consumes huge amounts of raw materials and hydrocarbons, but, China does have greater number of policy tools than many other countries to reduce the impact of the USD fluctuations.