vue打开新窗口的两种方式

1.使用路由跳转，绑定target="_blank"

    <router-link target="_blank" :to="{path:'/pdf/download',params:{id:'8'}}">
            <el-button type="primary">
                Click to download PDF
            </el-button>
        </router-link>

2.写点击事件

toBlank(){
    const routeData = this.$router.resolve({
           path: '/pdf/download',
           query:{
            id:id
           }
         });
         window.open(routeData.href, '_blank');
    }