关于数组调用的问题需请教一下。

Question

how did you define "coordinateData"? there is no problem with this code at all:coordinate_X=new Array(1934);
coordinateData = new Array();
coordinateData[4]=coordinate_X;

Answer 1

coordinateHotel_X=new Array(1936,1286,1304,1599,1730,1773)
coordinateHotel_Y=new Array(1593,1419,1454,606,1047,1347)

coordinateTravelAgency_X=new Array(1934)
coordinateTravelAgency_Y=new Array(1013)

coordinateOrgan_X=new Array(1709,1738,1740,1952,1634,704)
coordinateOrgan_Y=new Array(1333,934,1263,1045,909,1965)
coordinateData=new Array()
coordinateData[0]=coordinateHotel_X
coordinateData[1]=coordinateHotel_Y

coordinateData[2]=coordinateTravelAgency_X
coordinateData[3]=coordinateTravelAgency_Y

coordinateData[4]=coordinateOrgan_X
coordinateData[5]=coordinateOrgan_Y我用下面的函数调用数组
function setTargetInCenter() { 
  var k=parent.leftFrame.document.frmHandle.sltClass.selectedIndex;
  var i=parent.leftFrame.document.frmHandle.sltSearchInfo.selectedIndex;
  var j=2*(k-1);
  var distanceX=coordinateData[j][i];    
  var distanceY=coordinateData[j+1][i];    
  //下面两行代码可以使图片放大后目标的坐标仍然不变
  var pointX=distanceX*(parent.mainFrame.document.showImage.width/2490);   //2490为图片对象的初始宽度(地图的初始尺寸为2490*2543）
  var pointY=distanceY*(parent.mainFrame.document.showImage.height/2543);  //2543为图片对象的初始高度
  //-----------------------------------------------------------------------------------------------------------------------------
  var obj=parent.mainFrame.document.all.showArea.style;
  obj.left=parseInt(parent.mainFrame.document.body.clientWidth/2)-parseInt  (pointX);（信息显示是这一行出错，但只是在调用coordinateTravelAgency_X=new Array(1934)和coordinateTravelAgency_Y=new Array(1013)时出错，其他正常）
  obj.top=parseInt(parent.mainFrame.document.body.clientHeight/2)-parseInt(pointY);
  limitObjRange();  //限制图片的活动范围，使其不超出显示区的显示范围
}

Answer 2

下面为一维数组，长度为6，数值分别为1936,1286,1304,1599,1730,1773:
coordinateHotel_X=new Array(1936,1286,1304,1599,1730,1773)下面为一维数组，长度为1934，数值分别为undefined:
coordinateTravelAgency_X=new Array(1934)coordinateData[2][0]的值为undefined，而不是1934