<view>內容：{{contents}} </view> <view bindtap='copyText' data-text="{{contents}}">復制</view>

Page({
  data: {
    contents:'這是可以復制的文字,粘貼后即可看到效果' },
  copyText: function (e) {
    console.log(e)
    wx.setClipboardData({
      data: e.currentTarget.dataset.text,
      success: function (res) {
        wx.getClipboardData({
          success: function (res) {
            wx.showToast({
              title: '復制成功' })
          }
        })
      }
    })
  },
})