近来，对城市弱势群体的关心和讨论多起来了。城市弱势群体是指在城市中那些被排除在社会经济发展进程之外，不能享受到社会经济发展的成果，生活处于困境的人。当前，我国城市中形成弱势群体的原因可以作不同的分类。一种分类是按经济的原因、社会的原因、个人（包括家庭）的? Recently, there has been more concern and discussion about the urban disadvantaged groups. Urban disadvantaged groups refer to those people in urban areas who are excluded from the social and economic development process and can not enjoy the fruits of social and economic development and live in difficulties. At present, the reasons for the formation of vulnerable groups in our cities can be classified differently. A classification is based on economic reasons, social reasons, individuals (including families)?