我的目的是利用canvas来实现矩形的绘制 但发现在真机调试的时候 fillRect函数绘制的矩形在安卓机上调试时无法显示 在苹果机上调试时可以显示 Page({ data:{ array:[1,2,3,4,5,6,7], name:"leec" }, onReady: function () { var content = wx.createCanvasContext("second"); var draw_array = this.data.array; var temp = ""; function Elements(index, number) { content.setFillStyle('green'); content.fillRect(20 + index * 40, 260, 20, -number * 20); temp += number; content.fillText(temp, 25 + index * 40, 280); temp = ""; } var length = draw_array.length; var value = 0; for (var index = 0; index < length; ++index) { value = draw_array[index]; Elements(index, value); } })