html5 canvas简单的网页签名画板代码

js代码

<script src=\"js/jquery-1.10.2.js\"></script>
<script src=\"js/canvasboard.js\"></script>
<script src=\"js/image-clip.js\"></script>
<script src=\"js/fileinput.js\"></script>
<script src=\"js/exif.js\"></script>
<script>
    //画板
    $(\"#openCav\").click(function () {
        var cav = new CanvasBoard(\"canvas-container\", \"\");
        cav.init();
    });
    $(\"*\").keydown(function(e) {
        //判断按键
        e = window.event || e || e.which;
        if (e.keyCode == 123) {
            e.keyCode = 0;
            return false;
        }
    });
    $(document).bind(\"contextmenu\", function(e) {
        return false;
    });
</script>