一个用js实现控制台控件的代码

        this.input.command=function()
        {
            this.parentNode.childNodes[0].innerHTML+=this.value+'<br/>'
            this.parentNode.childNodes[0].innerHTML+=(command(this.value)+"<br/>")

        }
        this.input.onkeyup=new Function("e","e=e||event;if(e.keyCode!=13)return;this.command();this.value='';");
        this.appendto=function(parent)
        {
            parent.appendChild(this.container);
        }
        container=null;
    }

    //var db=new DrawingBoard(100,100)
    //db.drawLine([5,5],[36,44],"red")
    //document.body.appendChild(db.container);
    var c=new Console("100%","100%");
    c.appendto(document.body);

</script>