Joshua Have A Joy

render(){ const{mobx}=this.props; const itemList=[]; const items=mobx.itemBarcode; console.log(items); items.forEach((v,key)=>{ itemList.push([v.order,v.itemMsg,v.barcode,key]) }); ...

React 之componentWillUnmount unmount v. 卸载，取消安装； will 不用解释了吧 清除定时器 componentWillUnmount(){ clearTimeout(this.timer) } 解绑dom事件 componentWillUnmount(){ window.onScroll = null } 清除网络工作 componentWillUnmount(){ this.setState = (state,callback) =&gt