小编Bru*_*hen的帖子

$(document).ready(function() {
  var canvas = new fabric.Canvas('canvas');
  canvas.add(new fabric.Rect({
    left: 50,
    top: 50,
    width: 75,
    height: 50,
    fill: 'green',
    stroke: 'black',
    strokeWidth: 3,
    padding: 10
  }));

  canvas.add(new fabric.Circle({
    left: 120,
    top: 120,
    radius: 30,
    fill: 'gray',
    stroke: 'black',
    strokeWidth: 3
  }));


  $("#select-all").click(function() {
    canvas.discardActiveObject();
    var elements = canvas.getObjects();
    var selection = new fabric.ActiveSelection(elements);
    canvas.setActiveObject(selection);
    canvas.requestRenderAll();
  });

  $("#set-zoom-15").click(function() {
    canvas.setZoom(1.2);
  });
  $("#set-zoom-10").click(function() {
    canvas.setZoom(1.0);
  });
  canvas.renderAll();
});

canvas {
  border: 1px solid …