网站规划与建设规划书,网站做seo安全吗,手机网站有什么区别是什么,企业为什么要做网站建设我们在开发时下载图片或文件#xff0c;地址基本上都是https的格式#xff0c;下面来说一下后端返回base64的文件流#xff0c;是如何下载的 必须把返回的流去掉这一部分#xff1a;data:image/png;base64#xff0c;否则下载不了
如我自己的流#xff1a;
data:image/…我们在开发时下载图片或文件地址基本上都是https的格式下面来说一下后端返回base64的文件流是如何下载的 必须把返回的流去掉这一部分data:image/png;base64否则下载不了
如我自己的流
data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAJYAAACgCAIAAABhQAIFAAACaklEQVR42u3aUXLCMAwEUO5/6fYKMNLKcvL2k4E08UsHsfHnTy7PxxIgFISCEKEgFISCEKEgFISCEKEgFISCEKEgFISCEKG8h/ATyK9/q3KeXZdXAeECBEiRLiXsPQ9/MXSVD5becGdUCIECFChPcR/vp1XRlnKsfvGjcm1wEhQoQIEb6LsOv1xHsQIkSIECHCkNM18/nyVsQIUKECBGi3Cy5u76qb7t9kKIECFChPcRTi7f5tftYEOIECHCdxFOJnHZlUfNG5cIIUKECBHOEybGljRV5ZiTIxhChAgRIryb8FQFnN4ulRidECJEiBDhcwi7Rp7KElSOmR5DBioChAgRIkS4tOYtTWoi3Pyce7SR74IESJEiLCx5k4fp6vmXlhhI0SIECHCpYSJyjtx2ZO3xanHAAgRIkSIcNfzwlMVdtfWpq5KYXJkQ4gQIUKEZwgT40NiS1J61P6sTNChAgRItxLOLkEiUfHm6t5hAgRIkR4H2Hip3e6OuqudNjF0KECBEivIMwTV45/mRln6g7ECJEiBDh3YTpCji9rF1J/EsgRIgQIcK7CRtPvb2G7qrjh6twhAgRIkR4gDCdyhKnRO3OEKECBEivI8w/ZUuSWpcg6JLcIIESJEiPAwsTYkq4LTtXWIVqECBEiRLiIcLJW3jCSdI1pCBEiRIgQYXUk6arLE9XBxFMBhAgRIkT4bMKucWOSuVJNIESIECHCuwnTt0LiHCavMXQtCBEiRIjwMOEtdfDkcexgQ4gQIcLnE8qqIEQoCAUhQkEoCAUhQkEoCAUhQkEoCAUhQkEoCAUhQrk0/1j3Eulg4ZAoAAAAAElFTkSuQmCCdownImg(){var bytethis.codeImg.replace(data:image/png;base64,,);const fs uni.getFileSystemManager(); //全局唯一的文件管理器var number Math.random();fs.writeFile({filePath: wx.env.USER_DATA_PATH /code number .png,data: byte,encoding: base64,success(res) {uni.saveImageToPhotosAlbum({ //保存为png格式到相册filePath: wx.env.USER_DATA_PATH /code number .png,success: function (res) {uni.showToast({ title: 下载成功, icon: success });},fail: function (err) {console.log(err)}})}})},
