为什么说javacript没有多维数组只能模拟？但是我看到是可以实现多维数组的啊！这是为什么呢？下面我们来实验下。
<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="utf-8" />
<title>hexagon</title>
<style type="text/css">
#AA{width:10px;} </style>
<script type="text/javascript">
window.onload=function(){
var w = 100,
h = 100,
top = 100,
left = 100,
red = "red",
blue = "blue",
col=null,
bb=null;
var qq =new Array();
for(var i=0; i<10;i++){
for(var j=0; j<10;j++){
qq[i][j]=0;
}
};
qq[0][3]=5;
for(var i = 0; i<10;i++){
top = 110*i+50;
for(var j=0; j<10;j++){
bb=red;
if(qq[i][j]){bb=blue;};
left = 110*j+50
document.write('<div style="position:absolute;left:'+left+'px;top:'+top+'px;width:'+w+'px;height:'+h+'px;background-color:'+bb+';"></div>')}
}
}
</script>
</script>
</head>
<body>
</body>
</html>
这样会报错
TypeError: qq[i] is undefined
qq[i][j]=0;
就是说直接使用多维数组是不行的哦，那就是说javacript不支持多维数组哦！那我们平时是怎么用的哦?
<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="utf-8" />
<title>hexagon</title>
<style type="text/css">
#AA{width:10px;} </style>
<script type="text/javascript">
window.onload=function(){
var w = 100,
h = 100,
top = 100,
left = 100,
red = "red",
blue = "blue",
col=null,
bb=null;
var qq =new Array();
for(var i=0; i<10;i++){
qq[i] = new Array;//要在里面每个数组再设置为数组哦
for(var j=0; j<10;j++){
qq[i][j]=0;
}
};
qq[0][3]=5;
for(var i = 0; i<10;i++){
top = 110*i+50;
for(var j=0; j<10;j++){
bb=red;
if(qq[i][j]){bb=blue;};
left = 110*j+50
document.write('<div style="position:absolute;left:'+left+'px;top:'+top+'px;width:'+w+'px;height:'+h+'px;background-color:'+bb+';"></div>')}
}
}
</script>
</script>
</head>
<body>
</body>
</html>
要再在每个数组里的元素设置成数组才可以做到模拟多维数组的哦！！！