This medical diagnosis expert system can search the closest case from the database of typic cases according to matching arithmetic, and recommend to the doctor to help therapy after optimizing.

• 诊断专家系统通过医生输入当前患者的病状特征，依据相应的匹配算法从典型案例库中检索出与当前诊断病症最接近的历史病例，并遵循相关的改编规则优化历史病例的治疗方案，为医生的治疗提供辅助参考。