Question

在python中使用字符串声明变量时，出现以下错误

SyntaxError: (unicode error) 'unicodeescape' codec can't decode bytes in position 2-3: truncated \UXXXXXXXX escape

data_path ='C:\Users\amjin\My_datasets\simple-examples\data'

Answer 1

尝试以这种方式编写路径：

<vmap:VMAP xmlns:vmap="http://www.iab.net/videosuite/vmap" version="1.0">
<vmap:AdBreak timeOffset="start" breakType="linear" breakId="preroll">
<vmap:AdSource id="preroll-ad-1" allowMultipleAds="false" followRedirects="true">
<vmap:AdTagURI templateType="vast3">
<![CDATA[
https://pubads.g.doubleclick.net/gampad/ads?slotname=/124319096/external/ad_rule_samples&sz=640x480&ciu_szs=300x250&unviewed_position_start=1&output=xml_vast3&impl=s&env=vp&gdfp_req=1&ad_rule=0&vad_type=linear&vpos=preroll&pod=1&ppos=1&lip=true&min_ad_duration=0&max_ad_duration=30000&vrid=6256&cust_params=deployment%3Ddevsite%26sample_ar%3Dpremidpost&url=https://developers.google.com/interactive-media-ads/docs/sdks/android/tags&video_doc_id=short_onecue&cmsid=496&kfa=0&tfcd=0
]]>
</vmap:AdTagURI>
</vmap:AdSource>
</vmap:AdBreak>
<vmap:AdBreak timeOffset="00:00:15.000" breakType="linear" breakId="midroll-1">
<vmap:AdSource id="midroll-1-ad-1" allowMultipleAds="false" followRedirects="true">
<vmap:AdTagURI templateType="vast3">
<![CDATA[
https://pubads.g.doubleclick.net/gampad/ads?slotname=/124319096/external/ad_rule_samples&sz=640x480&ciu_szs=300x250&unviewed_position_start=1&output=xml_vast3&impl=s&env=vp&gdfp_req=1&ad_rule=0&cue=15000&vad_type=linear&vpos=midroll&pod=2&mridx=1&ppos=1&lip=true&min_ad_duration=0&max_ad_duration=30000&vrid=6256&cust_params=deployment%3Ddevsite%26sample_ar%3Dpremidpost&url=https://developers.google.com/interactive-media-ads/docs/sdks/android/tags&video_doc_id=short_onecue&cmsid=496&kfa=0&tfcd=0
]]>
</vmap:AdTagURI>
</vmap:AdSource>
</vmap:AdBreak>
<vmap:AdBreak timeOffset="end" breakType="linear" breakId="postroll">
<vmap:AdSource id="postroll-ad-1" allowMultipleAds="false" followRedirects="true">
<vmap:AdTagURI templateType="vast3">
<![CDATA[
https://pubads.g.doubleclick.net/gampad/ads?slotname=/124319096/external/ad_rule_samples&sz=640x480&ciu_szs=300x250&unviewed_position_start=1&output=xml_vast3&impl=s&env=vp&gdfp_req=1&ad_rule=0&vad_type=linear&vpos=postroll&pod=3&ppos=1&lip=true&min_ad_duration=0&max_ad_duration=30000&vrid=6256&cust_params=deployment%3Ddevsite%26sample_ar%3Dpremidpost&url=https://developers.google.com/interactive-media-ads/docs/sdks/android/tags&video_doc_id=short_onecue&cmsid=496&kfa=0&tfcd=0
]]>
</vmap:AdTagURI>
</vmap:AdSource>
</vmap:AdBreak>
</vmap:VMAP>

您可以使用/

更改\

或：

在Python 3中，您可以使用原始字符串来避免这种情况：

data_path ='C:/Users/amjin/My_datasets/simple-examples/data'

反斜杠（\）字符用于转义具有特殊含义的字符，例如换行符，反斜杠本身或引号字符。

示例：

在您的路径中：'C：\ Users \ amjin \ My_datasets \ simple-examples \ data'

'\ a'：ASCII铃声使铃声响铃响起
打印（“ \ a”），结果：N / A

SyntaxError：（unicode错误）“ unicodeescape”编解码器无法解码位置2-3中的字节：截断的\ UXXXXXXXX转义

1 个答案: