用AS2.0做FLASH画图板

一些基本的功能，其它功能还有待扩展：（代码如下）

var flag:Boolean = false;//判断，当鼠标点击后开始画。当鼠标松开后停止画
var sdu:Number = 1;//变化的深度
var yanse:Array = ["0x2223DD", "0x2BD55E", "0xEC6913", "0xF90606"];//色块
var xiantiao:Array = ["1", "3", "5", "7"];
var xtbh = 0;//记录线条粗细变化
var ysbh = 0;//记录变化颜色
var lines:Array = new Array();
var lis:Object = new Object();

//CTRL+Z做撤销
t1_txt.border = true;
lis.onKeyDown = function() {
 //t1_txt.text = Key.getCode();测试按键的值
 if (Key.isDown(17) && Key.isDown(90)) {
  cxhs();
 }
};
Key.addListener(lis);
cx_mc.onPress = function() {
 cxhs();
};
function cxhs() {
 if (sdu>0) {
  sdu--;
  ht_mc["xian"+sdu]._visible = false;

 }
 //removeMovieClip()                      
}

//创建画板
_root.createEmptyMovieClip("ht_mc",1);
ht_mc.lineStyle(1,0xff0000);
ht_mc.setMask(zzao_mc);

sz_txt.border = true;

_root.onMouseDown = function() {
 if (qyu_mc.hitTest(_xmouse, _ymouse)) {
  ht_mc.createEmptyMovieClip("xian"+sdu,sdu);
  ht_mc["xian"+sdu].lineStyle(xtbh,ysbh);
  flag = true;
  ht_mc["xian"+sdu].moveTo(_xmouse,_ymouse);
  ht_mc["xian"+sdu].lineTo(_xmouse+1,_ymouse+1);
  lines.splice(sdu+1);
 }
};
_root.onMouseMove = function() {

 if (flag) {
  ht_mc["xian"+sdu].lineTo(_xmouse,_ymouse);
 }
};
_root.onMouseUp = function() {
 if (flag) {
  flag = false;

  sdu++;
  lines.push(ht_mc["xian"+sdu]);
  //trace(sdu);
 }
 //trace("长度："+lines.length);
 //trace("深度："+sdu);
};

//清楚画板后，再创建一个
qc_mc.onPress = function() {
 ht_mc.removeMovieClip();
 sdu = 0;
 _root.createEmptyMovieClip("ht_mc",1);
 ht_mc.lineStyle(1,0xff0000);
 ht_mc.setMask(zzao_mc);
};

//换颜色和变线条粗细
for (var i = 0; i<4; i++) {
 _root["ys"+i+"_mc"].id = i;
 _root["xt"+i+"_mc"].id = i;
 _root["ys"+i+"_mc"].onPress = function() {
  trace(this.id);
  ysbh = yanse[this.id];

 };
 _root["xt"+i+"_mc"].onPress = function() {
  trace(this.id);
  xtbh = xiantiao[this.id];
 };
}

//做恢复
hf_mc.onPress = function() {
 if (sdu<lines.length+1) {
  ht_mc["xian"+sdu]._visible = true;
  sdu++;
 }
};

下面二张图分别为：场景里面的元件

第二张为：时间轴上的元件名称，可以对着代码和图片看

做到这里，画板基本上就可以用了，功能还待扩展中...