1:需求图: 手绘下拉框 带三角

2:网上查了一些例子,但都是实心的, 可参考,如图:



(原链接: https://blog.csdn.net/qq_33463449/article/details/113375804)
3:简洁版的:
a: 实心:

<view class="angle"/>

.angle{
    width:0;
    height:0;
    border-left: 10px solid transparent;
	border-right: 10px solid transparent;
	border-bottom: 10px solid #000;
}

b: 空心:

<view class="angle"/>

.angle {
			position: fixed;
			top:60upx;
			right: 50upx;
			display: block;
			width: 0;
			height: 0;
			border-color: transparent;
			border-style: solid;
			border-top-width: 0;
			border-bottom-color: #DFB1B3;
			border-width: 20upx;
			
		}
		.angle::after{
			position: absolute;
			display: block;
			width: 0;
			height: 0;
			border-color: transparent;
			border-style: solid;
			content: "";
			border-width: 20upx;
			top:1px;
			margin-left: -20upx;
			border-top-width: 0;
			border-bottom-color: #fff;
		}
		// 1px=2upx

我的页面代码



到此完美结束, 希望对你有所帮助 !