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App Inventor 2 拖拽物体教程 - 按住移动与碰撞检测 · App Inventor 2 中文网
... Q1: 拖动时有跳跃？
Q2: Sprite飞出Canvas边界？
Q3: 多个Sprite同时拖动？
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概述
已有文档：Canvas游戏基础。本文聚焦拖拽物体的实现。
ImageSprite拖拽
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...ate = new Date(date.setMonth(date.getMonth()+8));
Old
From here:
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var eightMonthsFromJan312009 = jan312009.setMonth(jan312009.getMonth()+8);
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