国家是制定、颁布和实施法律的基本单元，各国法律的制定都有其特定的政治、经济、文化和社会历史背景，因而各国法律制度必然各具特点，从而呈现出强烈的差异性或多样性。同时，各国法律在职能上毕竟有其相同或相近之处，不同国家的法律所赖以存在的政治、经济、又化和社会历? The state is the basic unit for formulating, promulgating and implementing laws. The formulation of laws in each country has its own specific political, economic, cultural and social historical background. Therefore, the legal systems in various countries inevitably have their own characteristics and thus show strong differences or diversities . At the same time, the laws of various countries have the same or similar functions after all, and the political, economic, social and social history in which the laws of different countries depend.