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Features
2011-07-08 12:06:17Features Features相当于网站的一个插件,甚至可以把网站定制成许多插件的组合。在c:\Program Files\Common Files\Microsoft Shared\web server extensions\12\template\features路径下FeaturesFeatures相当于网站的一个插件,甚至可以把网站定制成许多插件的组合。在c:\Program Files\Common Files\Microsoft Shared\web server extensions\12\template\features路径下,能够找到系统所有的features,每个feature都对应一个目录,每个目录下都包含一个feature.xml的文件。
Features的使用范围可以使场、Web应用程序、网站集、网站。
打开“网站操作”→“网站设置” →“修改所有网站设置”,在网站设置的页面中,单击“网站集功能”命令,能够看到有很多系统内置的功能某些Feature必须要激活,否则,网站的很多功能用不了。如Office SharePoint Server标准版网站集功能、Office SharePoint Server发布基础架构、Office SharePoint Server企业版网站集功能这三个feature是必须激活的Feature架构使用VS2008创建一个类库, 创建feature.xml<Feature
ActivateOnDefault="True"|"FALSE"
AlwaysForceInstall="TRUE"|"FALSE"
AutoActivateInCentralAdmin="TRUE"|"FALSE"
Creator="Text"
DefaultResourceFile="Text"
Description="Text"
Hidden="TRUE"|"FALSE"
ID="Text"
ImageUrl="Text"
ImageUrlAltText="Text"
ReceiverAssembly="Text"
RequireResources="TRUE"|"FALSE"
Scope="Text"
SolutionId="Text"
Title="Text"
Version="Text">
</Feature>v其他属性可以参考WSS3.0SDK在Feature.xml文件中,Feature元素定义了其本身,并指定了相关的程序集、文件、依赖等,或者支持该feature的一些属性。Feature.xml文件的结构如下:
Feature
ActivationDependencies
ActivationDependency
ElementManifests
ElementFile
ElementManifest
Properties
Property子元素ElementManifests包含一些文件,主要是Feature的元素清单和定义文件。ElementManifests子元素指定一个包含ElementManifest元素和ElementFile元素。
<ElementManifest Location=“Text”></ElementManifest>
Location属性:指定一个包含Feature元素定义的文件相对路径,如
<ElementManifest Location=“elements.xml”/>添加自定义菜单在网站操作按钮的下拉菜单中增加一个自定义菜单,当用户单击后,出现自定义界面,这个功能可以使用Feature来完成
1.feature.xml文件
<Feature Id="AA929AFF-4602-4d7f-A501-B80AC9A4BB52"
Title="这是我利用feature增加的site级别的菜单"
Description="这是我利用feature增加的site级别的菜单"
Scope="Site"
xmlns="http://schemas.microsoft.com/sharepoint/">
<ElementManifests>
<ElementManifest Location="elements.xml"/>
</ElementManifests>
</Feature>2.elements.xml
<Elements xmlns="http://schemas.microsoft.com/sharepoint/">
<CustomAction
Id="mypage"
GroupId="SiteActions"
Location="Microsoft.SharePoint.StandardMenu"
Sequence="200"
Title="我的日常工作"
Description="Getting up and going with inline code">
<UrlAction Url="~/site/pages/request.aspx"/>
</CustomAction>
</Elements>3.Features的部署
使用命令行工具stsadm,编写一个批处理文件,执行即可。
echo Copying the feature...
echo.
rd /s /q "%CommonProgramFiles%\Microsoft Shared\web server extensions\12\TEMPLATE\FEATURES\custaction"
mkdir "%CommonProgramFiles%\Microsoft Shared\web server extensions\12\TEMPLATE\FEATURES\custaction"copy /Y feature.xml "%CommonProgramFiles%\Microsoft Shared\web server extensions\12\TEMPLATE\FEATURES\custaction\"
copy /Y elements.xml "%CommonProgramFiles%\Microsoft Shared\web server extensions\12\TEMPLATE\FEATURES\custaction\"
echo.
echo Activating the feature...
echo.
pushd %programfiles%\common files\microsoft shared\web server extensions\12\bin
stsadm -o deactivatefeature -filename custaction\feature.xml -url http://mei:9000/
stsadm -o uninstallfeature -filename custaction\feature.xml -forcestsadm -o installfeature -filename custaction\feature.xml -force
stsadm -o activatefeature -filename custaction\feature.xml -url http://mei:9000/
pushdv安装后,打开网站操作->网站设置->修改所有网站设置->网站集,可以看到 -
bs4解析网页时 bs4.FeatureNotFound: Couldn't find a tree builder with the features you requested: ...
2017-08-30 13:29:08bs4.FeatureNotFound: Couldn't find a tree builder with the features you requested: lxml. Do you need to install a parser library? 几经周折才知道是bs4调用了python自带的html解析器,我用的mac,默认安装的...Python小白,学习时候用到bs4解析网站,报错
bs4.FeatureNotFound: Couldn't find a tree builder with the features you requested: lxml. Do you need to install a parser library?
几经周折才知道是bs4调用了python自带的html解析器,我用的mac,默认安装的是python2,所以内置的解释器也是捆绑在python2上,而我学习的时候又自己安装了python3,开发环境也是python3的,貌似是没有html解释器,所以会报错。
问题找到了,那么怎么解决呢?对,在python3也装一个html解析器就好了,那么怎么安装呢?查阅资料获悉:一般pip和pip2对应的是python2.x,pip3对应的是python3.x的版本,python2和python3的模块是独立的,不能混用,混用会出问题。所以命令行通过python3的pip:pip3 安装解析器:$ pip3 install lxml
3.8M,稍等片刻即可
再次运行项目,完美解决,特此记录说的直白点就是你的开发环境下下载的包里不存在你需要的lxml,比如说你用的是py2,但是把包装到了py3的包路径下,当然就找不到了,反之亦然。那么就检查一下当前的开发环境是用的Python版本和对应的Python版本下的Packages目录下有没有你需要的包,如果没有就安装一个。就是这么简单。
$ pip3(如果是py2就用pip) show lxml
如果已经安装了就会显示包的位置及信息,没有则会报错,执行上一步安装操作即可
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ImageFeatures
2018-10-11 22:41:55struct CV_EXPORTS ImageFeatures { int img_idx; Size img_size; std::vector keypoints; Mat descriptors; };struct CV_EXPORTS ImageFeatures
{
int img_idx;
Size img_size;
std::vector keypoints;
Mat descriptors;
}; -
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torch.nn.Linear(in_features,out_features,bias=True)
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