I imagine they watched closely what Russia was doing after the war started, and would take similar measures when the need arises. I think China is also in a much better position than most countries because it has large domestic industry. If capitalists start fleeing the government can easily nationalize their assets. It also helps that all the core industry is state owned.
I wonder what capital controls China has, and whether it has enough of them.
I imagine they watched closely what Russia was doing after the war started, and would take similar measures when the need arises. I think China is also in a much better position than most countries because it has large domestic industry. If capitalists start fleeing the government can easily nationalize their assets. It also helps that all the core industry is state owned.