How to understand China's multilateral diplomacy

Sun Tzu's The Art of War says that "the upper armies fight against strategy", and this strategy includes foreign policies such as "distant friendships and close attacks". That is to say, there are different strategies to treat different countries according to the region and humanities. And today's China is the same, for different countries around the economic and cultural, political parties and so on a series of conditions affecting the national conditions of constraints, we also have to take a different attitude to deal with, which is China's multilateral diplomacy.