说明: //两点间角度 function getAngle(px1, py1, px2, py2) { var vx=px2-px1; var vy=py2-py1; var hyp=Math.sqrt(Math.pow(vx,2)+Math.pow(vy,2)); var rad=Math.acos(vx/hyp); var deg = 180/(Math.PI / rad); //得到了一个角度“rad”,不过是以弧度为单位的 //把它转换成角度 if (vy<0) { deg=(-deg) <dqxxx> 上传 | 大小:425byte
说明: //两点间距离 function getDist(px1, py1, px2, py2) { var vx=px2-px1; var vy=py2-py1; var hyp=Math.sqrt(Math.pow(vx,2)+Math.pow(vy,2)); return hyp; } var long:Number=getDist(0,0,100,100) trace(long) <dqxxx> 上传 | 大小:196byte
说明: Welcome to Adobe Flash Professional CS5 On Demand, a visual quick reference book that shows you how to work efficiently with Flash. This book provides complete coverage of basic to advanced Flash skills. <bestchoice> 上传 | 大小:28mb