上代码

<el-form-item label="出库单号" prop="ecode" ref="ecode" :rules="rules.ecode">
                <el-input v-model="queryParams.ecode" placeholder="出库单号和出库箱号至少填写一项" clearable style="width: 300px" />
              </el-form-item>
              <el-form-item label="出库箱号" prop="econtainerCode" ref="econtainerCode" :rules="rules.econtainerCode">
                <el-input v-model="queryParams.econtainerCode" placeholder="出库单号和出库箱号至少填写一项" clearable style="width: 300px"  />
              </el-form-item>

data() {
    var validateName = (rule, value, callback) => {
      if (!this.queryParams.ecode && !this.queryParams.econtainerCode) {
        callback(new Error("请至少填写一项"))
      } else {
        //任意值被填写，清除验证提示
        if (!this.queryParams.ecode || !this.queryParams.econtainerCode) {
          // this.$nextTick(() => {
          //   this.$refs.zhname.clearValidate()
          // })
          this.$refs.ecode.clearValidate()
          this.$refs.econtainerCode.clearValidate()
        }
        callback()
      }
    }

    return {
      rules: {
        ecode: [
          {
            required: true,
            validator: validateName,
            trigger: "change",
          },
        ],
        econtainerCode: [
          {
            required: true,
            validator: validateName,
            trigger: "change",
          },
        ],
      }}

原文来源