uni-data-picker 级联选择器只 显示最后一个

通过 css样式来实现的

//级联选择器只表示最后一项
	/deep/.uni-data-tree {
		.uni-data-tree-input {
			.input-value {
				.uni-scroll-view-content {
					.selected-list {
						.selected-item {
							display: none;
 
							&:last-child {
								display: block !important;
							}
						}
					}
				}
			}
		}
	}