addLogo: function() {
        var _this = this
        console.log("添加LOGO")
        wx.chooseImage({
            count: 1,
            sizeType: ['original', 'compressed'],
            sourceType: ['album', 'camera'],
            success(res) {
                console.log("xxxxxxxxxx")
                    // tempFilePath可以作为img标签的src属性显示图片
                const tempFilePaths = res.tempFilePaths
                console.log(tempFilePaths)
                _this.setData({
                    logopath: tempFilePaths[0],
                })
            }
        })
    }