小程序mpvue怎么点击按钮获取button里面的值

 data() {
    return {
     
      msg:'苏喂苏喂苏喂'

    };

getData(){
 console.log( this.msg )
}

<button @click="getData()" name="bu">{{msg}}button>

 data() {
    return {
     
      concat:'12345678'

    };

<van-cell-group>
      <van-cell title="电话" value="点击拨打" data-text="*******"  icon="phone" />
      <van-cell title="微信" value="点击复制" data-text="********"  icon="chat" @click="copy($event)"/>
      <van-cell title="邮箱" value="点击复制" data-text="*******" @click="copy($event)" icon="invition"/>
      <van-cell title="博客" value="点击复制" data-text="******
" icon="desktop-o" @click="copy($event)"/>
    van-cell-group>

copy(e){
     var that = this;
     console.log(e.currentTarget.dataset.text)
        wx.setClipboardData({
          data: e.currentTarget.dataset.text,
          success: function (res) {
          wx.showModal({
            title: '提示',
            content: '复制成功',
            success: function (res) {
            if (res.confirm) {
              console.log('确定')
            } else if (res.cancel) {
              console.log('取消')
            }
            }
          })
      }
 });