The pressures are not only coming from the United States. Companies are increasingly facing a complicated global patchwork of export restrictions and data storage laws, including in the European Union. Chinese leaders have begun pursuing “wolf warrior” diplomacy, in which they are trying to teach other countries to think twice before crossing China, said Jim McGregor, chairman of APCO Worldwide’s greater China region. He said his company was telling clients to “try to comply with everybody, but don’t make a lot of noise about it — because if you’re noisy about complying in one country, the other country will come after you.”