[1.需求分析](wishlist%E9%9C%80%E6%B1%82%E5%88%86%E6%9E%90.md) [2.Plugin机制-拦截器](2.Plugin%E6%9C%BA%E5%88%B6-%E6%8B%A6%E6%88%AA%E5%99%A8.md) [3.心愿单修改示例](3.%E5%BF%83%E6%84%BF%E5%8D%95%E4%BF%AE%E6%94%B9%E7%A4%BA%E4%BE%8B.md)