开发者工具正常：
iOS 和 Android 真机异常：
相关问题
相关文档
- CanvasContext.measureText#返回值: 小程序/开发/API/画布/CanvasContext/CanvasContext.measureText
- CanvasContext.measureText: 小程序/开发/API/画布/CanvasContext/CanvasContext.measureText
- CanvasContext.measureText#参数: 小程序/开发/API/画布/CanvasContext/CanvasContext.measureText
- CanvasContext.measureText#功能描述: 小程序/开发/API/画布/CanvasContext/CanvasContext.measureText
- CanvasContext.measureText#示例代码: 小程序/开发/API/画布/CanvasContext/CanvasContext.measureText
webview 渲染模式，也是只返回图 2 那几个值