Vue组件上使用v-model之单选框

<template>
<div>
<input
type="radio"
:id="valueName"
:value="valueName"
:checked="picked === valueName"
:picked="picked"
@click="$emit('change', $event.target.value)"
/>
<label :for="valueName">{{ valueName }}</label>
</div>
</template>
<script>
export default {
props: ["picked", "valueName"],
model: {
prop: "picked",
event: "change",
},
computed: {},
methods: {},
};
</script>
<style>
</style>

<template>
<div>
<child-radio
v-for="valueName in valueNames"
:key="valueName"
v-model="picked"
:valueName="valueName"
></child-radio>
显示父组件单选的内容:{{ picked }} -->
</div>
</template>
<script>
import ChildRadio from "./ChildRadio.vue";
export default {
components: { ChildRadio },
data() {
return {
picked: "", //
valueNames: ["One", "Two", "Three"],
};
},
};
</script>
<style>
</style>

<template>
<div>
<Renderer :data='data' @updateValue='updateValue'/>
</div>
</template>
<script setup>
我这里使用unplugin-auto-import所以不必导入ref
import  Renderer from  "./components/Render.vue"
let  data = ref('0');
这样的方式修改父组件给我们传递的值
const  updateValue = (value) =>{
data.value = value;
}
</script>

<template>
<div>
<input type="text" v-model="content" @input="loadValue ">
</div>
</template>
<script setup>
const  emit =  defineEmits();
let  content =  ref('');
const  loadValue = () => {
emit('updateValue', content.value);
}
</script>

<template>
<div>
第一个data是，如果需要修改，修改当前组件的那个值
<Renderer v-model:data="data"/>
</div>
</template>
<script setup>
import  Renderer from  "./components/Render.vue"
let  data = ref('0');
</script>

<template>
<div>
<input type="text" v-model="content" @input="updateValue">
</div>
</template>
<script setup>
let  content = ref('');
const  emit =  defineEmits();
const  updateValue = ()=>{
emit('update:data', content.value);
}
</script>

	//vue2提供的修饰符
v-model.trim(去掉两端空格)
v-model.number(只输入number)
v-model.lazy(change事件触发)

<template>
<div>
<Renderer v-model:data.capitalize="data"/>
{{data}}
</div>
</template>
<script setup>
import  Renderer from  "./components/Render.vue"
let  data = ref('0');
</script>

<template>
<div>
<input type="text" v-model="content" @input="updateValue" />
</div>
</template>
<script setup>
const props = defineProps({
dataModifiers: Object
});
let content = ref('');
const emit = defineEmits();
const updateValue = () => {
if (props.dataModifiers.capitalize) {
content.value = content.value.charAt(0).toUpperCase() +  content.value.slice(1)
}
emit('update:data', content.value);
}
</script>