TypeError: ctx.getImageData is not a function. (In 'ctx.getImageData(0, 0, this._mbW, this._mbH)', 'ctx.getImageData' is undefined)
url:undefined
line:67259 column:43
id:1300147
TypeError: ctx.getImageData is not a function. (In 'ctx.getImageData(0, 0, this._mbW, this._mbH)', 'ctx.getImageData' is undefined)
这是什么原因？原生ios打包运行后，web方式是正常的
