uni.chooseImage({
					count: 1 - that.uploaderNum1, // 默认1
					sizeType: ['original', 'compressed'], // 可以指定是原图还是压缩图，默认二者都有
					sourceType: ['album', 'camera'], // 可以指定来源是相册还是相机，默认二者都有
					success: function(res) {
						console.log(res)
						// 返回选定照片的本地文件路径列表，tempFilePath可以作为img标签的src属性显示图片
						let uploaderList = res.tempFilePaths;
						// let uploaderList = that.uploaderList.concat(tempFilePaths);
						// 图片的长度 就隐藏那个按钮
						if (uploaderList.length == 1) {
							that.showUpload1 = false
						}
						that.uploaderList1 = uploaderList
						that.uploaderNum1 = uploaderList.length
						// that.getbaseimg(that.uploaderList1[0])
						uni.request({
							url: that.uploaderList1[0],
							method: 'GET',
							responseType: 'arraybuffer'
							success: ress => {
								let base64 = wx.arrayBufferToBase64(ress.data); //把arraybuffer转成base64 
								base64 = 'data:image/jpeg;base64,' + base64 //不加上这串字符，在访问页面无法显示
								that.http.post('上传图片的http', {
									base64_string: base64
								}).then(res => {
									console.log(res)
									that.isakwnadls1 = res.data.data
									console.log(that.isakwnadls1)
								})
							}
						})
					}
				})
				base64 放到img标签里面也是可以显示的