uni.chooseImage({
		     count: 1,
		     success: res => {
		       const tempFilePaths = res.tempFilePaths
		       uni.uploadFile({
		         url: 'https://api.zzgoodqc.cn/api/upload',
		         filePath: tempFilePaths[0],
		         name: 'file',
		         success: res => {
		           console.log('upload success', res)
		         },
		         fail: err => {
		           console.log('upload fail', err)
		         }
		       })
		     }
		   })

file 流