Page({  data: {  },onReady: function () {     // 頁面渲染完成     var cxt_arc = wx.createCanvasContext('canvas1');//創(chuàng)建并返回繪圖上下文context對象。     cxt_arc.setLineWidth(6);    cxt_arc.setStrokeStyle('#80868a');    cxt_arc.setLineCap('round')    cxt_arc.beginPath();//開始一個新的路徑     cxt_arc.arc(125, 125, 120, Math.PI * 0.8, 2.2 * Math.PI, false);//設(shè)置一個原點(125,125)，半徑為120的圓的路徑到當前路徑     cxt_arc.stroke()//對當前路徑進行描邊     cxt_arc.draw();  },})