请教各位大神,
我创建了一个新二维数组:
    var newArray = [];
    newArray.push(["","A","B","C","D","E","F","G","H","I","J"]);
    newArray.push([1,"","","","","","","","","",""]);
    newArray.push([2,"","","","","","","","","",""]);
    newArray.push([3,"","","","","","","","","",""]);
    newArray.push([4,"","","","","","","","","",""]);
    newArray.push([5,"","","","","","","","","",""]);
    newArray.push([6,"","","","","","","","","",""]);
    newArray.push([7,"","","","","","","","","",""]);
    newArray.push([8,"","","","","","","","","",""]);
    newArray.push([9,"","","","","","","","","",""]);
    newArray.push([10,"","","","","","","","","",""]);    for(var i= 0; i < newArray.length; i++)
    {
        var lineOutput = "";
        for(var j = 0;j < newArray[i].length; j++)
        {
            lineOutput += newArray[i][j] + " ";    
        }
        console.log(lineOutput);
    }效果如下:现在我需要在某一处坐标,例如 D3 处加一个“O", 需要达到的效果如下:这个如何实现啊?