制作方法如下。

　　首先建立两个空的影片剪辑cloud和grass。

　　先建立云的影片剪辑（里面什么都不画）

　　选择该元件的第一帧，添加如下代码。

　　同样办法再新建立一个草的影片剪辑

　　选择第一帧添加如下代码。

//Height of each blade of grass grassheight=35; //Average space in between each blade of grass grassspacing=5; //Maximum sway of each blade of grass maxsway=20; //Number of blades of grass along the x axis xplots=30; //Number of blades of grass along the y axis yplots=20; //The wind has an x position and the grass is attracted to the position windxpos=0; //Velocity of the wind left and right windspeed=0; //Gives the grass a bent effect. The grass bends 1/4 of the way up grasscontrol=grassheight/4; //Array containing the info for each blade of grass grasscoords=[]; //These loops go through the field, planting each blade of grass for (xpos=0; xpos for (ypos=0; ypos  //x position, y position, sway, and color   grasscoords.push([xpos*grassspacing+Math.random()*grassspacing,ypos*grassspacing+Math.random()*grassspacing,0,Math.round(Math.random()*128)*65536+Math.round(Math.random()*76+146)*256]);  } } //Run on each frame onEnterFrame=function(){ //Clear all of the grass so it can be redrawn with different sway  this.clear(); //Change the speed of the wind  windspeed=Math.max(-50,Math.min(50,windspeed+Math.random()*40-20)); //Move the position the blades are attracted according to the windxpos  windxpos+=windspeed; //If the windxpos moves too far to the left, reverse its speed  if(windxpos<-100){   windxpos=-100;   windspeed*=-1;  } //If the windxpos moves too far to the right, reverse its speed  else if(windxpos>grassspacing*xplots+100){   windxpos=grassspacing*xplots+100;   windspeed*=-1;  } //handle the redraw for each blade of grass  for(coord=0;coord//Set the line style. 0 means use hairline width and grasscoords[coord][3] is the color      this.lineStyle(0, grasscoords[coord][3], 100, false, "normal", "none", "none", 1); //Adjust the sway according to the grass's current sway and the windxpos   grasscoords[coord][2]=Math.max(-maxsway,Math.min(maxsway,grasscoords[coord][2]+Math.max(-maxsway,Math.min(maxsway,(windxpos-grasscoords[coord][0])/100))))+(Math.random()*3-1.5); //Move to the base of the blade of grass   this.moveTo(grasscoords[coord][0],grasscoords[coord][1]); //Draw a curved line to the new top of the blade of grass   this.curveTo(grasscoords[coord][0],grasscoords[coord][1]-grasscontrol,grasscoords[coord][0]+grasscoords[coord][2],grasscoords[coord][1]-grassheight+Math.abs(grasscoords[coord][2]/2));  } }

　　然后回到主场景中，建立两个图层，下面的为云的图层，上面的为草的图层，这里我绘制了一个放草的框框。

　　按Ctrl+L打开库分别把草元件和云元件放到相应的图层。给草命名实例grass。

　　最后可以测试影片了！但是好象机器运行速度在减慢啊！祝你好运！