naive-ui/demo/documentation/components/input/enUS/event.demo.md

# Event
```html
<n-space vertical align="stretch">
  <n-input
    v-model:value="value"
    @blur="handleBlur"
    @focus="handleFocus"
    @change="handleChange"
    @keyup="handleKeyUp"
    @input="handleInput"
    placeholder="Operate to trigger events"
  />
  <n-input
    v-model:value="value"
    type="textarea"
    @blur="handleBlur"
    @focus="handleFocus"
    @change="handleChange"
    @keyup="handleKeyUp"
    @input="handleInput"
    placeholder="Operate to trigger events"
  />
</n-space>
```
```js
export default {
  inject: ['message'],
  data () {
    return {
      value: null,
      pair: null
    }
  },
  methods: {
    handleFocus() {
      this.message.info("[Event focus]")
    },
    handleBlur() {
      this.message.info("[Event blur]")
    },
    handleChange(v) {
      this.message.info("[Event change]" + v)
    },
    handleKeyUp(e) {
      this.message.info("[Event keyup]")
    },
    handleInput(v) {
      this.message.info("[Event input] " + v)
    }
  }
}
```