1、xhtml代码
长按保存：
<view class="img" catchlongpress='baocun'></view>
2、Js代码
baocun: function (e) { wx.showModal({ title: '提示', content: '确定要保存这张图片吗？', success: function (res) { if (res.confirm) { console.log('用户点击确定') wx.getImageInfo({ src: 'xxxxxxx', success: function (res) { console.log(res); var path = res.path; wx.saveImageToPhotosAlbum({ filePath: path, success: function (res) { console.log('图片已保存'); }, fail: function (res) { console.log('保存失败'); } }) } }); } else if (res.cancel) { console.log('用户点击取消') } } }) },
详情可参考小程序文档