“债”是民法中的基本概念，其基础意义不仅在传统的民法中有所呈现，在我们称之为商法的领域内，也有非常重要的意义。本文对债和有限责任的关系、债和投资的关系作一个粗浅的探讨，希望对理解债的概念有所裨益。理论界对债与责任的关系已有比较成熟的认识。民法理论通常认为? “Debt” is the basic concept in civil law. The basic meaning of “debt” is not only presented in the traditional civil law, but also very important in the area we call it the commercial law. This article discusses the relationship between debt and limited liability, the relationship between debt and investment, and hopes to understand the concept of debt. Theorists have got a relatively mature understanding of the relationship between debt and responsibility. Civil law theory usually think?