Introduction to Changchun:
Changchun, which belongs to Jilin Province, is located in the mid-latitude zone of the northern hemisphere, in the hinterland of the northeast great plain of China on the east coast of Eurasia, with the latitude of 43 05 ′ ~ 45 ′15 ′ north latitude. East longitude12418 ′ ~127 05 ′, adjacent to Songyuan city in the northwest, Siping city in the southwest, Jilin city in the southeast and Heilongjiang province in the northeast. It is the political, economic and cultural center of Jilin Province. Changchun city is located in the northeast border. More than two thousand years ago, this was the place where the northern Sioux gods lived. 1945 12.20 the central government of the Kuomintang established the Changchun municipal government in Changchun, which is subordinate to Jilin province. Changchun has a temperate continental semi-humid monsoon climate, with a total area of 20593.5 square kilometers [1] and a total registered population of 7.534 million (20 16) [2]. It has jurisdiction over 2 county-level cities, 8 districts, 1 county, and has scenic spots such as Jingyuetan and Puppet Manchu Palace, and won the title of "China".