按Enter鍵開始搜尋路徑 按空白鍵進入編輯模式，再按一次以清除全部 在空白處長按並拖曳以繪製牆壁，在牆壁長按拖曳以清除牆壁 鼠標滑至右上角可以更改模式: 模式1:只能橫向及直向移動 模式2:可對角線移動 模式3:可對角線移動，但距離為√2 倍 Press Enter to start searching for paths Press the space bar to enter edit mode, press again to clear all Long press and drag on an empty space to draw a wall, long press and drag on a wall to clear it Slide the mouse to the upper right corner to change the mode: Mode 1: Can only move horizontally and vertically Mode 2: Can move diagonally Mode 3: Can move diagonally, but the distance is √2 times
A*搜尋演算法（A* search algorithm）是一種在圖形平面上，有多個節點的路徑，求出最低通過成本的演算法。 （摘自維基百科） The A* search algorithm is an algorithm that finds the lowest pass cost for paths with multiple nodes on the graphics plane. (Excerpted from Mandarin Wikipedia)
