需要解决两个问题： 字库cdn无法访问的问题，可以放置在自己的服务器中通过接口查询。canvas中的绘制问题。解决方案： 1.1 修改index.js中的字库请求地址到自己的服务器地址。可以使用我的临时地址： var getCharDataUrl = function getCharDataUrl(char) { return 'https://wxapi.db101.cn/v1/hz/search/' + encodeURIComponent(char); }; 2.1 参考的另外一篇文章，修改RenderTarget方法 function RenderTarget(view) { _classCallCheck(this, RenderTarget); this.view = view; this.eventEmitter = new _EventEmitter2.default(); const query = this.view.createSelectorQuery() query.select('#writer-canvas', view).fields({ node: true, size: true }) .exec((res) => { this.canvas = res[0].node const dpr = wx.getSystemInfoSync().pixelRatio this.canvas.width = res[0].width * dpr this.canvas.height = res[0].height * dpr this.ctx = this.canvas.getContext('2d') this.ctx.scale(dpr, dpr) }) this.ctx = polyfillCanvasCtx(wx.createCanvasContext('writer-canvas', view)); this.canvas = this.view.selectComponent('#writer-canvas'); }