var myarr=[[0,1,2,3],[1,2,3,4,5,6]];
myarr[0][1]=18;
document.write("myarr数组的值是:"+myarr[0][1])
</script>
myarr[][]=new Array();
for(var i=0;i<3;i++)
{
for(var j=0;j<6;j++)
{
myarr[i][j]=i*j;
document.write(myarr[i][j]+"<br> ");
}
}
for(var i=0;i<3;i++)
{
myarr[i]=new Array();
for(var j=0;j<6;j++)
{
myarr[i][j]=i*j;//任务中要我们运用的算法;
document.write(myarr[i][j]+" ");
}
document.write("<br />");
}