<el-form-item

  v-for="(domain, index)in form.domains"

  :label="'编号'"

  :key="domain.key"

  :prop="'domains.' + index +'.caseNos'"

  :rules="rules.caseNos">

<el-input v-model="domain.caseNos"

            clearable

            size="small"

            maxlength="14"

            style="width:240px"/>

<span style="margin-left:10px"></span>

<el-button plain size="mini" type="primary" @click="addDomain" v-if="index+1 == form.domains.length">+

</el-button>

<el-button plain size="mini" @click.prevent="removeDomain(domain)" v-if="index !==0">-</el-button>

</el-form-item>

 data  重点

let validateCaseNos = (rule, value, callback) => {

var row_index = rule.field.replace(/[^0-9]/ig,"");

if (!value) {

return callback(new Error('编号不能为空'))

}else if (this.form.domains.length >1) {

for (let index in this.form.domains) {

let item =this.form.domains[index]

if (item.caseNos === value &&index !=row_index) {

callback(new Error('编号唯一性,不能重复'))

return

      }

}

}else {

callback()

}

}

// 表单参数

form: {

domains: [{

caseNos:''

  }],

},