源自：3-8 字号设置功能实现（下）
Error in mounted hook: "TypeError: Cannot read property 'display' of undefined"
Error in mounted hook: "TypeError: Cannot read property 'display' of undefined"
可以打印出书籍，报这个错误，什么原因呢
提问者：qq_花纹纹_0
2019-08-10 19:07
Error in mounted hook: "TypeError: Cannot read property 'display' of undefined"
可以打印出书籍，报这个错误，什么原因呢