循环的form表单校验，传入index

 el-form-item标签上设置校验规则：:rules=[{}]

 { validator: (rule, value, callback) => checkTeleList(rule, value, callback, index) }

const checkTeleList = (rule,value,callback, index) => {
    };

或

checkTeleList(rule,value,callback, index) {}