踩坑[Intervention] Ignored attempt to cancel a touchmove event with cancelable=false, for example because scrolling is in progress and cannot be interrupted.未知（待更新）“Error in render: “TypeError: Cannot r

网盘地址提取码：vh81笔记第二章2.1script标签<script>元素属性：async、charset、defer、language、src、typeasync和defer只对外部脚本有效，language已废弃，type默认为“text/javascript”defer属性可以让脚本在文档完全呈现之后再执行，且按照指定的顺序执行设置了async的脚本文件不一定按照书写顺序执行，