点击此处下载本次操作视频Flash第八次视频.rar

连线题源文件连线题.fla

var line1:Sprite = new Sprite();

//line1.graphics.beginFill(0xFFFFFF);

//line1.graphics.drawRect(0, 0, 500, 400);

//line1.graphics.endFill();

addChildAt(line1, 0);

line1.graphics.lineStyle(3, 0x0000FF);

var left1Answer:int = 0;

var left2Answer:int = 0;

var left3Answer:int = 0;

var left4Answer:int = 0;

var selectItem:int = 0;

left1.addEventListener(MouseEvent.CLICK, function(){

  line1.graphics.moveTo(left1.x, left1.y);

  selectItem = 1;

});

left2.addEventListener(MouseEvent.CLICK, function(){

  line1.graphics.moveTo(left2.x, left2.y);

  selectItem = 2;

});

left3.addEventListener(MouseEvent.CLICK, function(){

  line1.graphics.moveTo(left3.x, left3.y);

  selectItem = 3;

});

left4.addEventListener(MouseEvent.CLICK, function(){

  line1.graphics.moveTo(left4.x, left4.y);

  selectItem = 4;

});

right1.addEventListener(MouseEvent.CLICK, function(){

  line1.graphics.lineTo(right1.x, right1.y);

  if(selectItem == 1) {

    left1Answer = 1;

  } else if(selectItem == 2) {

    left2Answer = 1;

  } else if(selectItem == 3) {

    left3Answer = 1;

  } else if(selectItem == 4) {

    left4Answer = 1;

  }

});

right2.addEventListener(MouseEvent.CLICK, function(){

  line1.graphics.lineTo(right2.x, right2.y);

  if(selectItem == 1) {

    left1Answer = 2;

  } else if(selectItem == 2) {

    left2Answer = 2;

  } else if(selectItem == 3) {

    left3Answer = 2;

  } else if(selectItem == 4) {

    left4Answer = 2;

  }

});

right3.addEventListener(MouseEvent.CLICK, function(){

  line1.graphics.lineTo(right3.x, right3.y);

  if(selectItem == 1) {

    left1Answer = 3;

  } else if(selectItem == 2) {

    left2Answer = 3;

  } else if(selectItem == 3) {

    left3Answer = 3;

  } else if(selectItem == 4) {

    left4Answer = 3;

  }

});

right4.addEventListener(MouseEvent.CLICK, function(){

  line1.graphics.lineTo(right4.x, right4.y);

  if(selectItem == 1) {

    left1Answer = 4;

  } else if(selectItem == 2) {

    left2Answer = 4;

  } else if(selectItem == 3) {

    left3Answer = 4;

  } else if(selectItem == 4) {

    left4Answer = 4;

  }

});

课堂上的源代码（不完整）

var line1:Sprite = new Sprite();
var line2:Sprite = new Sprite();
var line3:Sprite = new Sprite();
var line4:Sprite = new Sprite();
addChildAt(line1, 0);
addChildAt(line2, 0);
addChildAt(line3, 0);
addChildAt(line4, 0);

var selectItem:int = 0;

var left1Answer:Array = [];
var left2Answer:int = 0;
var left3Answer:int = 0;
var left4Answer:int = 0;

left1Answer[0] = 1;
left1Answer[1] = 2;
left1Answer[left1Answer.length] = 3;

line1.graphics.lineStyle(3, 0xFF0000);
line2.graphics.lineStyle(3, 0xFF0000);
line3.graphics.lineStyle(3, 0xFF0000);
line4.graphics.lineStyle(3, 0xFF0000);

left1.addEventListener(MouseEvent.CLICK,
 function () {
  left1.gotoAndStop(2);
  selectItem = 1;
  line1.graphics.moveTo(left1.x, left1.y);
 });
left2.addEventListener(MouseEvent.CLICK,
 function () {
  left2.gotoAndStop(2);
  selectItem = 2;
  line2.graphics.moveTo(left2.x, left2.y);
 });
left3.addEventListener(MouseEvent.CLICK,
 function () {
  left3.gotoAndStop(2);
  selectItem = 3;
  line3.graphics.moveTo(left3.x, left3.y);
 });
left4.addEventListener(MouseEvent.CLICK,
 function () {
  left4.gotoAndStop(2);
  selectItem = 4;
  line4.graphics.moveTo(left4.x, left4.y);
 });
right1.addEventListener(MouseEvent.CLICK,
 function () {
  if(selectItem == 1) {
   left1.gotoAndStop(1);
   if(left1Answer != 0) {
    line1.graphics.clear();
    line1.graphics.lineStyle(3, 0xFF0000);
    line1.graphics.moveTo(left1.x, left1.y);
   }
   line1.graphics.lineTo(right1.x, right1.y);
   left1Answer = 1;
  } else if(selectItem == 2) {
   left2.gotoAndStop(1);
   if(left2Answer != 0) {
    line2.graphics.clear();
    line2.graphics.lineStyle(3, 0xFF0000);
    line2.graphics.moveTo(left2.x, left2.y);
   }
   left2Answer = 1;
   line2.graphics.lineTo(right1.x, right1.y);
  } else if(selectItem == 3) {
   left3.gotoAndStop(1);
   if(left3Answer != 0) {
    line3.graphics.clear();
    line3.graphics.lineStyle(3, 0xFF0000);
    line3.graphics.moveTo(left3.x, left3.y);
   }
   left3Answer = 1;
   line3.graphics.lineTo(right1.x, right1.y);
  } else if(selectItem == 4) {
   left4.gotoAndStop(1);
   if(left4Answer != 0) {
    line4.graphics.clear();
    line4.graphics.lineStyle(3, 0xFF0000);
    line4.graphics.moveTo(left4.x, left4.y);
   }
   left4Answer = 1;
   line4.graphics.lineTo(right1.x, right1.y);
  }
  selectItem = 0;
 });
right2.addEventListener(MouseEvent.CLICK,
 function () {
  if(selectItem == 1) {
   left1.gotoAndStop(1);
   left1Answer = 2;
   line1.graphics.lineTo(right2.x, right2.y);
  } else if(selectItem == 2) {
   left2.gotoAndStop(1);
   left2Answer = 2;
   line2.graphics.lineTo(right2.x, right2.y);
  } else if(selectItem == 3) {
   left3.gotoAndStop(1);
   left3Answer = 2;
   line3.graphics.lineTo(right2.x, right2.y);
  } else if(selectItem == 4) {
   left4.gotoAndStop(1);
   left4Answer = 2;
   line4.graphics.lineTo(right2.x, right2.y);
  }
  selectItem = 0;
 });
right3.addEventListener(MouseEvent.CLICK,
 function () {
  if(selectItem == 1) {
   left1.gotoAndStop(1);
   left1Answer = 3;
   line1.graphics.lineTo(right3.x, right3.y);
  } else if(selectItem == 2) {
   left2.gotoAndStop(1);
   left2Answer = 3;
   line2.graphics.lineTo(right3.x, right3.y);
  } else if(selectItem == 3) {
   left3.gotoAndStop(1);
   left3Answer = 3;
   line3.graphics.lineTo(right3.x, right3.y);
  } else if(selectItem == 4) {
   left4.gotoAndStop(1);
   left4Answer = 3;
   line4.graphics.lineTo(right3.x, right3.y);
  }
  selectItem = 0;
 });
right4.addEventListener(MouseEvent.CLICK,
 function () {
  if(selectItem == 1) {
   left1.gotoAndStop(1);
   left1Answer = 4;
   line1.graphics.lineTo(right4.x, right4.y);
  } else if(selectItem == 2) {
   left2.gotoAndStop(1);
   left2Answer = 4;
   line2.graphics.lineTo(right4.x, right4.y);
  } else if(selectItem == 3) {
   left3.gotoAndStop(1);
   left3Answer = 4;
   line3.graphics.lineTo(right4.x, right4.y);
  } else if(selectItem == 4) {
   left4.gotoAndStop(1);
   left4Answer = 4;
   line4.graphics.lineTo(right4.x, right4.y);
  }
  selectItem = 0;
 });