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解决Scrapy警告:You do not have a working installation of the service_i...

...们可以直接通过命令行下载: pip install service_identity-17.0.0-py2.py3-none-any.whl 如果上面的方法没能解决问题,很大可能是有些包的版本不一样导致的,这个时候我们可以用下面这行代码来强制更新: pip install service_identity --for...
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 使用自带的web浏览器播放视频的链接,播放哔哩哔哩里上传的视频,因为是...

本帖最后由 2878646354 于 2024-07-17 15:21 编辑 不知道为什么腾讯视频插入视频的嵌入链接的时候可以展示视频的界面,但是点击播放以后就卡住不动了换成哔哩哔哩的链接可以正常显示使用的是自带自带的web浏览器,先创建一个...
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Echarts透明背景及兼容问题 - 用户反馈 - 清泛IT社区,为创新赋能!

...法一: var option={     backgroundColor:'rgba(128, 128, 128, 0.1)' //rgba设置透明度0.1 } 方法二: var option={     backgroundColor:'' //设置无背景色 }
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菜品识别的API有哪些? - App应用开发 - 清泛IT社区,为创新赋能!

...下: 百度云:https://cloud.baidu.com/doc/IMAGERECOGNITION/s/tk3bcxbb0 阿里云:https://help.aliyun.com/zh/viapi ... a2c4g.11186623.0.i0 ------------------------- 食物营养成分识别:https://www.tianapi.com/apiview/121
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AppInventor2画布的坐标原点是哪里? - App应用开发 - 清泛IT社区,为创新赋能!

Q:AppInventor2画布的坐标原点在哪里,是中心吗? A:画布的左上边缘是 0,0 原点。
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终于不用拿复选框凑了:App Inventor 新组件「单选框」,问卷表单一个搞定 ...

...判断:单选框默认一项都不选,这时「选中项索引」是 0。提交前一定要查一下,不然用户什么都没选也提交上去了。 一份问卷有几道单选题,就放几个单选框,各管各的选项,互不干扰。 ▲ 几道单选题就放几个单选框...
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Can Android do peer-to-peer ad-hoc networking?

... 62 Here's a bug report on the feature you're requesting. It's status is "reviewed" but I don't bel...
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Can a java file have more than one class?

... Chicken Soup 79222 gold badges99 silver badges2828 bronze badges answered Jun 9 '09 at 6:53 AlbertoAlberto ...
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Quickest way to compare two generic lists for differences

... miguelmpnmiguelmpn 1,0161010 silver badges2222 bronze badges ...
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How to build a Debian/Ubuntu package from source?

...ild a package from source with existing debian sources: Example for libdrm2: apt-get build-dep libdrm2 apt-get source libdrm2 cd libdrm-2.3.1 uupdate ~/Downloads/libdrm-2.4.1.tar.gz cd ../libdrm-2.4.1 dpkg-buildpackage -us -uc -nc ...