2 回答Cannot read property 'width' of undefined

3 回答Uncaught TypeError: Cannot read property 'width' of undefined

1 回答baby.js:104 Uncaught TypeError: Cannot read property 'width' of undefined

2 回答大魚小魚都不顯示了。報錯：TypeError: Cannot read property 'width' of undefined。瀏覽器指示錯誤就在這行代碼里

2 回答大魚小魚都不顯示了。報錯：TypeError: Cannot read property 'width' of undefined。檢查了一遍代碼應(yīng)該和視頻一樣。把魚尾還原成原來不擺動的代碼后發(fā)現(xiàn)小魚正常但是大魚的尾巴沒了