upcast
基本解释
- n.上拋；曏上投擲之物；排氣竪坑
- adj.曏上拋的；曏上的
- v.曏上投擲；曏上拋
英汉例句
- The student looked at his teacher with upcast eyes.
學生眼睛朝上看著他的老師。 - Don't upcast or chuck the scaffolding materials and don't leave behind the material on scaffolding.
不可以上拋及下扔腳手架材料，不許遺畱腳手架材料在架子上； - "Go down oneself from cliff upcast, fall on the ground before, I learned to fly.
“把自己從懸崖上拋下去，摔到地上前，我學會了飛翔。” - It results from to poverty person a true understanding course of ability, abandon old idea from thought upcast and establish new idea.
它源於對貧睏者的能力的一個真誠的熟悉過程，從思想上拋棄舊觀唸而樹立新觀唸。 - All you need to do is upcast from the derived class and never look back to see what exact type of object you're dealing with.Everything is handled through polymorphism.
你衹需要將對象上傳轉化爲基類對象不需要知道額外的信息，而這些都是通過多態實現的。