两个问题，求助各位

问题 1，APP 上该页面是可以上下滑动，选择不同楼层，封装了一个向上的滑动方法，但是每次运行脚本是，都不执行滑动操作，该如何实现滑动？
问题 2 ，页面楼层元素定位困难，inspector 虽然给出了 xpath 路径，但提示不可靠，还有什么方法可以实现定位楼层元素？环境信息：appium+pyhton # 封装函数
def swipeup_slight(self, t=1500, n=1):
- logging.info('====向上滑动====')
- l = self.get_size()
- x1 = int(l[0] * 0.5)
- y1 = int(l[0] * 0.8)
- y2 = int(l[0] * 0.7)
- for i in range(n):
- self.swipe(x1, y1, x1, y2, t)

滑动调用及报错信息

appium 日志信息

[W3C] Calling AppiumDriver.performTouch() with args: [[{"action":"press","options":{"x":540,"y":972}},{"action":"wait","options":{"ms":1500}},{"action":"moveTo","options":{"x":540,"y":108}},{"action":"release","options":{}}],"ba3c2b7a-137a-4a6b-aad6-cf3d9853f79e"]
[JSONWP Proxy] Proxying [POST /touch/perform] to [POST http://localhost:8200/wd/hub/session/1a3cb740-ee8-88ed22f51de8/touch/perform] with body: {"startX":540,"startY":972,"endX":540,"endY":108,"steps":42}
[W3C] Encountered internal error running command: {"w3cStatus":400,"jsonwp":{"sessionId":"1a3cb740-eae8-47ce-b5e8-88ed22f51de8","status":13,"value":"Swipe did not complete successfully"}} ProxyRequestError: Could not proxy command to remote server. Original error: 500 - {"sessionId":"1a3cb740-eae8-47ce-b5e8-88ed22f51de8","status":13,"value":"Swipe did not complete successfully"}
[W3C] at JWProxy.proxy$ (C:\Program Files (x86)\Appium\resources\app\node_modules\appium-base-driver\lib\jsonwp-proxy\proxy.js:152:13)
[W3C] at tryCatch (C:\Program Files (x86)\Appium\resources\app\node_modules\appium-base-driver\node_modules\babel-runtime\regenerator\runtime.js:67:40)
[W3C] at GeneratorFunctionPrototype.invoke as _invoke
[W3C] at GeneratorFunctionPrototype.prototype.(anonymous function) as throw
[W3C] at GeneratorFunctionPrototype.invoke (C:\Program Files (x86)\Appium\resources\app\node_modules\appium-base-driver\node_modules\babel-runtime\regenerator\runtime.js:136:37)
[W3C] at
[MJSONWP] Matched JSONWP error code 13 to UnknownError

滑动调用及报错信息

appium 日志信息

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