DongMenKant

> > @USTBhyh you may have installed npm inside the anaconda environment like me. I had to delete the conda environment, install npm outside anaconda and then recreate the environment....

>  您好 请教一下 我的图片格式是 `data:image/png;base64, 报这个错是因为图片太大了吗 是因为calcStep递归函数进入死循环了，可以增加return条件或递归次数限制来解决。如果是在项目组件中创建了CanvasSelect对象instance，记得在onBeforeUnmount时调用instance.destroy()进行销毁，即可避免。