vue非空校验

效果图

实现代码

//页面html
<div>
				<ul class="listinfo">
					<li>
						<span class="info">1.身份证正面照片</span>
						<van-uploader :after-read="onRead" accept="image/gif, image/jpeg" multiple>
							<div class="uploadimg">
								<img class="card" src="../../assets/images/idcard1.png" />
							</div>
						</van-uploader>
					</li>
					<li>
						<span class="info">2.身份证反面照片</span>
						<van-uploader :after-read="onRead1" accept="image/gif, image/jpeg" multiple>
							<div class="uploadimg">
								<img class="cardback" src="../../assets/images/idcard1.png" />
							</div>
						</van-uploader>
					</li>
				</ul>
				<div class="btn">
					<van-button size="large" :disabled="disabled" @click="goSearch()">提交图片进行查询</van-button>    //给这个button绑定disabled属性
				</div>
			</div>
//js
	disabled: function() {
		  		let val;
		  		if(this.zheng == "" || this.fan == ""){
		  			val = true
		  		}else{
		  			val = false
		  		}
		  		return val
		  	}