canvas绘制多行文字

代码如下：let Canvas = document.createElement(‘canvas’);let ctx = Canvas.getContext(“2d”);let scaleBy = 2;let fontSize = 12;let lineheight = fontSize * scaleBy * 1.4; //行高为size1.4倍let {x, y} = {30, 10};let line = ‘你好#该我换行了#再见’ctx.textAlign = ’left’; //可以选择center rightctx.font = fontSize * scaleBy + “px PingFangSC”;line.split(’#’).forEach((item, i) => { ctx.fillText(item, x3 * scaleBy, y3 * scaleBy + (i * lineheight));})let nodeImg = document.createElement(“img”);nodeImg.src = Canvas.toDataURL();document.body.appendChild(nodeImg)