已知条件分为外显条件和隐含条件两种，由于隐含条件具有隐蔽性，解题时如果不能发现这些重要已知条件，就会陷入困境．而一旦发现了隐含条件，就会豁然开朗，本文就对隐含方式做一些粗浅的归纳．隐含条件根据隐含方式可粗略地分为五类，即现象隐含、过程隐含、模型隐含、图象 Known conditions are divided into explicit conditions and implicit conditions. Because implicit conditions are hidden, if these important known conditions cannot be found when solving problems, they will be in trouble. Once the implied condition is found, it will suddenly become clear. This article will do some superficial induction of implicit methods. Implicit conditions can be broadly divided into five categories based on implicit methods, namely, phenomenon implicit, process implicit, model implicit, image