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              Python面試真題 – 是否遇到過python的模塊間循環引用的問題,如何避免它?

              【Python面試真題】- 是否遇到過python的模塊間循環引用的問題,如何避免它?

              這是代碼結構設計的問題,模塊依賴和類依賴  
              如果老是覺得碰到循環引用,很可能是模塊的分界線劃錯地方了。可能是把應該在一起的東西硬拆開了,可能是某些職責放錯地方了,可能是應該抽象的東西沒抽象  
              總之微觀代碼規范可能并不能幫到太多,重要的是更宏觀的劃分模塊的經驗技巧,推薦uml,腦圖,白板等等圖形化的工具先梳理清楚整個系統的總體結構和職責分工  
                
              采取辦法,從設計模式上來規避這個問題,比如:  
              1. 使用 “all” 白名單開放接口  

              2. 盡量避免 import  



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