wx.chooseImage({
          count: 1,
          sizeType: ['original', 'compressed'],
          sourceType: ['album', 'camera'],
          success(res) {
            const tempFilePaths = res.tempFilePaths;
          }
       })

出现的机型：
{
	"errMsg": "getSystemInfo:ok",
	"model": "iPhone6",
	"windowWidth": 375,
	"windowHeight": 812,
	"language": "zh_CN",
	"screenWidth": 375,
	"screenHeight": 812,
	"pixelRatio": 1,
	"version": "7.0.3",
	"statusBarHeight": 20,
	"system": "iOS 10.0.1",
	"brand": "iPhone",
	"fontSizeSetting": 16,
	"safeArea": {
		"right": 375,
		"bottom": 812,
		"left": 0,
		"top": 20,
		"width": 375,
		"height": 792
	},
	"platform": "ios",
	"SDKVersion": "2.15.0",
	"enableDebug": false
}