针对程序设计类课程中传统教学模式往往无法帮助学生准确评估自身能力，造成学生知识理解不深和问题解决能力不足的问题，提出一种采用交互方式进行项目式教学的创新教学模式，介绍项目开发和实施过程，以C#语言的“变量定义”知识点为例介绍教学应用实践，最后说明教学实践效果。

Aiming at the issue that the traditional teaching model in programming courses often fails to help students accurately assess their own capabilities,resulting in shallow knowledge comprehension and insufficient problem-solving skills,this paper proposes an innovative project-based teaching model using interactive approaches.It introduces the process of project development and implementation,takes the knowledge point of "variable definition" in C# as an example to illustrate the teaching application practice,and finally demonstrates the effectiveness of the teaching practice.