https://developers.weixin.qq.com/miniprogram/dev/api/canvas/CanvasContext.fillText.html 比如这样,在开发者工具上生效,手机上就全黑色了 // Create gradient var gradient=ctx.createLinearGradient(0,0,c.width,0); gradient.addColorStop("0","magenta"); gradient.addColorStop("0.5","blue"); gradient.addColorStop("1.0","red"); // Fill with gradient ctx.fillStyle=gradient; ctx.fillText("Big smile!",10,90);