uniapp实现iframe效果

<web-view src="https://uniapp.dcloud.io/component/web-view" allow></web-view>

　　

onReady() {
			var currentWebview = this.$scope.$getAppWebview() 
			setTimeout(function() {
				let wv = currentWebview.children()[0]
				wv.setStyle({top:220,height:300})
			}, 1000); 
		},