运行不出来啊,怎么回事呢? function bb2_onclick()
{var arr=[["names","z1","z2","z3"],["ages",12,13,14]];
for(var i=0;i<arr.length;i++)
{ for(var j=0;j<arr{i}.length;j++)
{ alert(arr[i][j]);
}
}
}
{var arr=[["names","z1","z2","z3"],["ages",12,13,14]];
for(var i=0;i<arr.length;i++)
{ for(var j=0;j<arr{i}.length;j++)
{ alert(arr[i][j]);
}
}
}
function bb2_onclick()
{
var arr=[["names","z1","z2","z3"],["ages",12,13,14]];
for(var i=0;i<arr.length;i++)
{
for(var j=0;j<arr[i].length;j++)
{
alert(arr[i][j]);
}
}
}
bb2_onclick()
</script>
for(var j=0;j<arr[i].length;j++) //注意方括号与“{”的区别