jquer HTML5鼠标控制树生长方向形状动画特效.zip

代码片段：letmemo={}; letmemoize=function(width,scale,lean){  constmemoKey=`${width}-${scale}-${lean}`;  if(!memo[memoKey]){   constcurrentH=width*scale;   constresult={    leftSize: Math.sqrt(currentH**2(width*(0.5-lean))**2),    rightSize: Math.sqrt(currentH**