What clothes are suitable for Xi 'an 12 degrees?

/kloc-the weather is about 0/2 degrees, which is actually quite cool in the morning. If you are an office worker, you can wear a long-sleeved shirt with a thin coat or a direct suit. Xi 'an, referred to as "Gao", was called Chang 'an and Haojing in ancient times. It is the capital of Shaanxi Province, a sub-provincial city, a megacity, the core city of Guanzhong Plain urban agglomeration, and an important central city in western China determined by the State Council. Xi City is located in the Guanzhong Basin in the middle of the Yellow River Basin, bordering on Zero River and Yuanqiu Mountain in the east, hua county, Weinan City, Shangzhou District and Luonan County in the west, Taibai Mountain and Qinghua Loess Plateau in the west, Meixian County and Taibai County in the south, the main ridge of North Qinling Mountain in the south, Foping County, ningshan county County and Zhashui County in the north, Weihe River in the north and Xianyang in the northeast. Xi 'an has a great difference in altitude, and belongs to a warm temperate semi-humid continental monsoon climate.