:controls="false"，不使用控制按钮；

      <div>
        <span class="label">金额</span>
        <div
          style="width: 100%;border: solid 1px rgba(0, 0, 0, 0.1); border-radius: 4px; display: flex;align-items: center;"
        >
          <el-input-number
            v-model.trim="queryParams.amount"
            placeholder="请输入交易金额"
            :controls="false"
            size="small"
            @keyup.enter.native="handleQuery"
          />
          <i
            class="el-icon-circle-close"
            style="margin: 5px;color: rgba(0, 0, 0, 0.3);"
            @click="clearInputNumber('amount')"
          ></i>
        </div>
      </div>

清空方法：

    clearInputNumber (property) {
      // console.log("🚀 ~ clearInputNumber ~ property:", property)
      this.queryParams[property] = undefined
    },

css样式：

<style lang="scss" scoped>
::v-deep .el-input-number.is-without-controls .el-input__inner{
  text-align: left !important; // 左对齐
  border: none;
}
</style>