HTML：
<view>{{orderDetail.order_no}}
<text class="cuIcon-copy lg text-bule" bindtap='copyText' data-text="{{orderDetail.order_no}}">复制</text>
</view>
JS：
copyText: function (e) {
wx.setClipboardData({
data: JSON.stringify(e.currentTarget.dataset.text),
success: function (res) {
wx.getClipboardData({
success: function (res) {
wx.showToast({
title: '复制成功'
})
}
})
}
})
},
