继续使用sketch.js编辑草图图像

//declare an arrayvar canvas;$('#buttonSave').click(function () {   //saves all actions you made in your canvas   canvas = $('#canvasId').sketch().actions });$('#buttonRetrieve').click(function () {    //iterates through your array, adds and redraws each action    $.each(canvas, function (i, val) {        $('#canvasId').sketch().actions.push(val);        $('#canvasId').sketch().redraw();        });});