法律主要是通过各种法律规范来体现的。马克思曾说,法典是人民自由的圣经。法律规范必须是肯定的、明确的、普遍适用的。理解和把握各种法律规范,研究它的逻辑结构,无论在理论上,还是在实践上都是有意义的。人类特有的法律现象,自身是一个整体,一个系统。为了研究它的逻辑结构,我们必须引进系统论这个具有普遍意义的方法论。法律规范作为一个系统,必有若干层次、有若干个互相作用、互相联系的 The law is mainly reflected through various legal norms. Marx once said that the code is the Bible for people’s freedom. Legal norms must be affirmative, clear, generally applicable. To understand and grasp various legal norms and to study its logical structure makes sense both in theory and in practice. Human-specific legal phenomenon, itself is a whole, a system. In order to study its logical structure, we must introduce system theory as a universal methodology. As a system of legal norms, there must be several levels, there are a number of interaction and interrelationship