ant-design-vue/components/vc-input-number/demo/custom.jsx

import InputNumber from '../src/index'
import '../assets/index.less'

export default {
  data () {
    return {
      disabled: false,
      readOnly: false,
      value: 5,
    }
  },
  methods: {
    onChange (value) {
      console.log('onChange:', value)
      this.value = value
    },
    toggleDisabled () {
      this.disabled = !this.disabled
    },
    toggleReadOnly () {
      this.readOnly = !this.readOnly
    },
  },
  render () {
    const upHandler = (<div style={{ color: 'blue' }}>x</div>)
    const downHandler = (<div style={{ color: 'red' }}>V</div>)
    return (
      <div style='margin: 10px;'>
        <InputNumber
          min={-8}
          max={10}
          value={this.value}
          onChange={this.onChange}
          style='width: 100px'
          readOnly={this.readOnly}
          disabled={this.disabled}
          upHandler={upHandler}
          downHandler={downHandler}
        />
      </div>
    )
  },
}