iview实现A输入框输入B输入框清空，B输入框输入A输入框清空

1 <span class="filterBlock">
2         证卡号码：
3         <Input class="filter"
4                v-model.lazy="cardNumber"
5                placeholder="请输入"
6                clearable />
7       </span>

1  <span class="filterBlock">
2         身份证号：
3         <Input class="filter"
4                v-model.lazy="idCardNum"
5                placeholder="请输入"
6                clearable />
7       </span>

 1  watch: {
 2     idCardNum(val) {
 3       if (val) {
 4         this.cardNumber = ‘‘;
 5       }
 6     },
 7     cardNumber(val) {
 8       if (val) {
 9         this.idCardNum = ‘‘;
10       }
11     },
12   },