去官网学习→表单输入绑定 | Vue.js

 运行示例：

  代码：HelloWorld.vue

<template>
  <div class="hello">
    <h1>Vue 表单输入绑定</h1>
    <input type="text" placeholder="输入框" v-model="msg"/>
    <h2>{{msg}}</h2>

    <input type="text" placeholder="输入框lazy" v-model.lazy="msg2"/>
    <h2>{{msg2}}</h2>

    <input type="text" placeholder="输入框trim" v-model.trim="msg3"/>
    <h2>{{msg3}}</h2>
    
    <input type="text"  v-model.number="age" />
    <h2>{{age}}</h2>
   

    <h3>请选择角色:{{checked}}</h3>
    <input type="checkbox"  v-model="checked" value="张三丰" />张三丰
    <input type="checkbox" v-model="checked"  value="周芷若"/>周芷若
    <input type="checkbox" v-model="checked"  value="白眉鹰王"/>白眉鹰王
    <input type="checkbox" v-model="checked"  value="峨眉师太"/>峨眉师太
    <br/>

    <h3>获取到数据:{{ selectedss}}</h3>
    <select >
    <option>--请选择--</option>
    <option v-for="(option,index) in options" 
    :key="index" value="{{ option.value }}" 
    @click="getContent(option.text)">{{ index }}--{{ option.value }}--{{ option.text }}</option>
    </select>
   
    <h3>请选择性别:{{ pick }}</h3>
    <input type="radio" v-model="pick"  name="sex" value="男" checked/>男
    <input type="radio" v-model="pick"  name="sex" value="女" />女
    <br/>
    <select>
      <!-- 内联对象字面量 -->
      <option :value="{ number: 123 }">123</option>
      <option :value="{ number: 456 }">456</option>
    </select>

  </div>
</template>

<script>
export default {
  name: 'HelloWorld',
  data(){
    return{
      msg:"",
      msg2:"",
      msg3:"",
      age:18,
      //默认选中
      checked:["张三丰"],
      selectedss:"",
      options :[
        { text: 'One', value: 'A' },
        { text: 'Two', value: 'B' },
        { text: 'Three', value: 'C' }
      ],
      pick:"男"
    }
  },
  methods:{
    getContent(e){
     // alert(e);
     this.selectedss = e;
    }
  }
  
}

</script>