this._xscale=100*(Math.sin(Math.PI/180*t)*0.2+0.5);在flash中这是什么意思啊这是在flash cs3中做一个文字特效的代码

this._xscale=100*(Math.sin(Math.PI/180*t)*0.2+0.5);在flash中这是什么意思啊这是在flash cs3中做一个文字特效的代码 Flash动作中“100*(Math.sin(Math.PI/180*t)*0.2+0.其中Math.sin什么意思还有PI.这是this._xscale的变量值onClipEvent (enterFrame) {this._xscale=100*(Math.sin(Math.PI/180*t)*0.2+0.5) this._yscale=100*(Math.sin(Math.PI/180*t)*0.2+0.5)if (t 这句话的具体含义是什么onClipEvent (load) {xscale = 100;yscale = 100;sX = 0;sY = 0;multiplicator = .3;ratio = .5;this.swapDepths(4);}onClipEvent (enterFrame) {if jump) {sX = Number(sX*multiplicator)+Number((xscale-_xscale)*ratio);sY = Numbe 英语翻译stop();stopAllSounds();this.createEmptyMovieClip(mc1,1);var mcloader = new MovieClipLoader();var obj = new Object();obj.onLoadInit = function (target_mc){ with(target_mc){_xscale = 142;_yscale = 133;}}mcloader.addListener(obj);mcloader. 英语翻译_root.stop();bar._xscale = 0;onEnterFrame = function (){var _loc5 = _root.getBytesLoaded();var _loc4 = _root.getBytesTotal();var _loc3 = int(_loc5 / _loc4 * 100);baifenbi = _loc3;bar._xscale = _loc3;if (_loc3 == 100 && _loc4 > 20){delete 谁能给我解释一下flash中_xscale=100*(_root._xmouse-_x)/(xs/2)语句的意思.onClipEvent (load) {xs =_width;ys =_height;}onClipEvent (enterFrame) {_xscale=100*(_root._xmouse-_x)/(xs/2);_yscale=100*(_root._ymouse-_y)/(ys/2);} Thank you for ()(give)ma this book. F=ma F=ma是什么意思? F=ma是什么意思? ma+mb= 因式分解 1=1ma? 300MA=?A F=ma是什么? 300mA=?A MA ma 已知Ra=900 Ia=100uA I1=100mA I2=10mA I3=1mA 求分流电阻R1,R2,R3的值