What is the difference between the "Beijing School" represented by Shen Congwen as the leading writer and the "Hai School"? What kind of literary forms are they?

The two belonged to the three major literary schools of the 1930s (the Left Wing, the Beijing School, and the Sea School).

The "Haikai School" was a product of the abnormal prosperity of commercial and consumer culture in the southeastern coastal cities centered on Shanghai in the 1930s, which depicted the city in a transitory manner, relying on the literary market, and created "sex novels", mostly infected with the "disease of urban civilization". "Most of them are infected with the disease of urban civilization. The technique is close to the Western modernist art, pursuing the change and newness of art. For example, writers such as Zhang Zhiping and Ye Lingfeng.

The "Beijing School" was a group of scholarly writers who emerged in the 1930s in the northern cities, reveling in traditional culture while pursuing free and independent literature, and opposing both political subordination and the commercialization of literature. In addition to Shen Congwen's western Hunan world, there is the hometown of Huangmei and the suburban world of western Beijing, and Xiao Qian's hedgerow world at the root of the city of Beijing ...... is good at depicting the lives of ordinary people, with restrained and introspective emotions, and strong nostalgia, which can be said to be a cultural novel with deep meanings.