Vant-Weap通過事件獲取值

van-field框的使用 和通過事件獲取值

   <van-cell-group>
        <van-field
            value="{{username}}"
            label="姓名"
            placeholder="請輸入您的姓名"
            bind:blur="getname"
            class='nextnext'
        />
    </van-cell-group>

   <van-button 
      type="primary" size="large" 
      color="linear-gradient(to right, #4bb0ff, #6149f6)"
       bindtap="getalldata"
    > 提交 </van-button>
   -------------------------------------
   ##js##
  data: {
    username:"",
  },
  
  // 獲取姓名
  getname(event) {
    console.log("失去焦點獲取的值",event.detail.value);//獲取值
    // 設置值
    this.setData({
      username: event.detail.value
    })
  },

  getalldata(){
    console.log("點擊按鈕獲取的值",this.data.username)
  },