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With the maturity of information technologies such as big data, blockchain, industrial Internet, and artificial intelligence, the Sino-US trade war continues to escalate.It can be predicted that after the Sino-US trade war in goods, a “digital trade war” may have begun quietly.On the one hand, the key to Internet issues is data governance rules, which are related to digital trade and digital economy, and are the key to future national competitiveness;on the other hand, the impact of the trade war on China’s trade in goods is also an issue that needs to be discussed.The article found through research that the negative impact of the Sino-US trade war on China is gradually showing. The scale of China’s trade import and export has shrunk, and a lot of trade opportunities have been lost.The prediction of “internet fragmentation” is becoming a reality.I analyzed the countermeasures to deal with the trade war from the aspects of conducting trade negotiations, expanding internal demand, and handling data governance issues.

The maximum output power (Pmax) generated from photovoltaic (PV) array will be apparently reduced if the array is partially shaded. In order to enhance Pmax generated from partial shaded PV array, several interconnection schemes of array are proposed. Among these schemes, the totally cross tied (TCT) scheme and the recently proposed static scheme are widely discussed. It was reported that Pmax produced with static scheme is equal to the TCT scheme even under worst conditions. However, in these simulations the illumination of every single module is assumed to be uniform, but in urban environments the illumination of modules on the edge of shadow is more likely to be non-uniform. In this paper, first, a comprehensive circuit-level simulation, which is implemented in PSpice, has been done to investigate performance of PV array with both TCT scheme and static scheme under different partial shading conditions. And the results show that Pmax generated from static scheme is higher than that form TCT scheme if the illumination of every single module is uniform, however if some modules are partially shaded, the Pmax with static scheme is more likely less than that with TCT scheme. Then, the electrical connection of a module is improved for the purpose of enhancing Pmax under partial shading conditions in which some modules in the array are partially shaded. And the simulation results show that Pmax is apparently increased by employing the improved modules.