搜索
首页后端开发php教程自己动手,丰衣足食.

时下grunt非常的火啊,用着虽然很爽,但是它的配置确实很烦。如果之前没有用过,想要一下子熟练驾驭它,有一定的学习成本,而且还要装node这个大家伙,项目之初我们选择了compiler.jar这个轻量的工具进行打包。我一直在寻思着,如何编写一键打包工具。之前呢是手工的拼接好有的js文件,做成符合compiler.jar打包文件所要求的批处理文件,然后运行这个批处理,生成我们需要的js和css文件。随着js文件数量的增长,纯手工拼接这些文件的地址就变得非常考验人的耐心了,而且还容易漏掉或重复某些文件,于是“一键打包工具”的编写就变得刻不容缓了。下面是一个真实的index.html文件的一部分:

<spanmicrosoft yahei><span><span>DOCTYPE html</span><span>></span>
<span><span>html</span><span>></span>
<span><span>head</span><span>></span>
    <span><span>meta </span><span>charset</span><span>="utf-8"</span><span>></span>
    <span><span>meta </span><span>http-equiv</span><span>="X-UA-Compatible"</span><span> content</span><span>="IE=edge,chrome=1"</span><span>></span>
    <span><span>meta </span><span>name</span><span>="viewport"</span><span> content</span><span>="target-densitydpi=device-dpi, initial-scale=1, user-scalable=0, maximum-scale=1"</span><span>></span>
     <span><!--</span><span>隐藏浏览器的工具栏和菜单栏,对iso系统起用</span><span>--></span>
    <span><!--用于PC上调式,不参与合并压缩</span><span>--></span>
    <span><span>script </span><span>src</span><span>="lib/data/database.js"</span><span> name</span><span>="noBuild"</span><span>></span><span>script</span><span>></span>
    <span><!--</span><span>Iframe加载处理</span><span>--></span>
    <span><span>script </span><span>src</span><span>="lib/LoadMode.js"</span><span>></span><span>script</span><span>></span>

    <span><span>script </span><span>src</span><span>="lib/core/jQuery.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/core/underscore.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/animate/SVGIcons/snap.min.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/animate/pixi.js"</span><span>></span><span>script</span><span>></span>

    <span><span>script </span><span>src</span><span>="lib/core/Xut.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/core/isMobile.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/core/aaronRequire.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/core/nextTick.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/Config.js"</span><span>></span><span>script</span><span>></span>

    <span><span>script </span><span>src</span><span>="lib/core/lang/Object.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/core/lang/Function.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/core/lang/Array.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/core/video.js"</span><span>></span><span>script</span><span>></span>

    <span><!--</span><span> 自定义事件,合集处理,iframe通讯 </span><span>--></span>
    <span><span>script </span><span>src</span><span>="lib/core/event/asEvented.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/core/message/pms.js"</span><span>></span><span>script</span><span>></span>

    <span><!--</span><span>插件</span><span>--></span>
    <span><span>script </span><span>src</span><span>="lib/plugin/cordova.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/plugin/readAssetsFilePlugin.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/plugin/initDatabase.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/plugin/web.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/plugin/video.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/plugin/openAppPlugin.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/plugin/tabletPlugin.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/plugin/statusbar.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/plugin/iap.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/plugin/AppStoreLink.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/plugin/downloadPlugin.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/plugin/xxteManager.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/plugin/unzipPlugin.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/plugin/readPlugin.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/plugin/deletePlugin.js"</span><span>></span><span>script</span><span>></span>
    <span><!--</span><span> 动画库 </span><span>--></span>
    <span><span>script </span><span>src</span><span>="lib/animate/TweenMax.min.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/animate/plugins/ThrowPropsPlugin.min.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/animate/PptAnimation.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/animate/CanvasAnimation.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/animate/dragdrop/Draggable.min.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/animate/dragdrop/dragdrop.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/animate/iscroll.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/animate/hammer.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/animate/SVGIcons/svgicons-config.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/animate/SVGIcons/svgicons.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/animate/SpriteA.js"</span><span>></span><span>script</span><span>></span>

    <span><span>script </span><span>src</span><span>="lib/util/Utils.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/util/LocalStorage.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/util/ScriptLoad.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/util/ExecuteSql.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/util/PromptNotice.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/util/edge.js"</span><span>></span><span>script</span><span>></span>

    <span><!--</span><span> 配置文件,数据文件,结构文件 </span><span>--></span>
    <span><span>script </span><span>src</span><span>="lib/data/Store.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/data/StoreManager.js"</span><span>></span><span>script</span><span>></span>

    <span><!--</span><span> 数据初始化 </span><span>--></span>
    <span><span>script </span><span>src</span><span>="lib/Main.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/Initialize.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/scenario/SceneLayout.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/scenario/SceneFactory.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/scenario/SceneController.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/LoadScene.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/Dispatcher.js"</span><span>></span><span>script</span><span>></span>

    <span><!--</span><span> 工具栏 </span><span>--></span>
    <span><span>script </span><span>src</span><span>="lib/toolbar/Navbar.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/toolbar/sToolbar.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/toolbar/fToolbar.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/toolbar/searchBar.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/toolbar/bookMark.js"</span><span>></span><span>script</span><span>></span>

    <span><!--</span><span> 多线程任务片 </span><span>--></span>
    <span><span>script </span><span>src</span><span>="lib/threadTask/Buffer.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/threadTask/TaskContents.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/threadTask/TaskComponents.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/threadTask/TaskBackground.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/threadTask/TaskContainer.js"</span><span>></span><span>script</span><span>></span>

    <span><span>script </span><span>src</span><span>="lib/pageBase/Parser.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/pageBase/Collection.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/pageBase/MultiEvent.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/pageBase/PageBase.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/pageBase/Page.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/pageBase/Master.js"</span><span>></span><span>script</span><span>></span>


    <span><!--</span><span> 页面管理模块 </span><span>--></span>
    <span><span>script </span><span>src</span><span>="lib/controller/transform/Translation.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/controller/OverrideApi.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/controller/Abstract.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/controller/Emitter.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/controller/PageMgr.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/controller/MasterMgr.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/controller/Compiler.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/controller/ViewModel.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/controller/SwitchPage.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/controller/EventDrive.js"</span><span>></span><span>script</span><span>></span>

    <span><!--</span><span>热点管理</span><span>--></span>
    <span><span>script </span><span>src</span><span>="lib/scheduler/AssignAutoRun.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/scheduler/AssignTrigger.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/scheduler/AssignSuspend.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/scheduler/AssignOriginal.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/scheduler/AssignRecovery.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/scheduler/ProcessControl.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/scheduler/Binding.js"</span><span>></span><span>script</span><span>></span>

    <span><!--</span><span> 适配器,用于处理热点 </span><span>--></span>
    <span><span>script </span><span>src</span><span>="lib/directives/dir-Content.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/directives/dir-Widget.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/directives/dir-Media.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/directives/dir-Action.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/directives/dir-ShowNote.js"</span><span>></span><span>script</span><span>></span>

     <span><!--</span><span>多媒体对象 </span><span>--></span>
    <span><span>script </span><span>src</span><span>="lib/component/media/Audio.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/component/media/Video.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/component/media/AudioManager.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/component/media/VideoManager.js"</span><span>></span><span>script</span><span>></span>

    <span><!--</span><span>文本热点</span><span>--></span>
    <span><span>script </span><span>src</span><span>="lib/component/content/conFilter.js"</span><span>></span><span>script</span><span>></span>
    <span><span>script </span><span>src</span><span>="lib/component/content/conAlgorithm.js"</span><span>></span><span>script</span><span>></span>
<br></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></spanmicrosoft>

后面还有很长,bug,活人不能被尿憋死,办法总比问题多。我是会一点php的,php在处理文件方面是很拿手的,是时候让它发挥点作用了。于是我想到了用php去自动提出index里边的js和css,然后按指定的格式生成批处理文件,在后台用静默方式运行这个批处理,最后把结果返回给显示器。这样我就可以坐享其成了。想想都有点小激动哟,于是简单的写了一个界面.

接下来就是实现功能了,先不着急编写代码,分析下需求:

1. 遍历index.html文件,提取js文件或css文件.

2. 对这文件进行过虑,因为有些是注释掉的,有些是调式用的。

3. 生成对应的批处理文件

4. 执行批处理文件

5. 显示处理结果

即然有两种情况,我就用一个工厂模式来适配,方便以后扩展其它类型,目光要放长远一点。即然工厂都有了,那索性再来一个接口,约定都必需要实现“接收请求”和“输出结果”这两个接口。再想想处理js和css都可能会有相同的功能,让它们继承一个父类可以使代码复用,于是继承也先用上。目前的设计应当可以满足我的要求了,于是开始编写php代码.

<span>php
</span><span>header</span>("Content-type: text/html; charset=utf-8"<span>);

</span><span>/*</span><span>*
 * 根据index.html文件中引用的js,生成compressJs.bat
 * @author frog 
 * @date 2014-11-17
 </span><span>*/</span>

<span>interface</span><span> ICompress {
    </span><span>/*</span><span>*
     * 处理用户请求
     * @return [type] [description]
     </span><span>*/</span>
    <span>public</span> <span>function</span><span> request();

    </span><span>/*</span><span>*
     * 处理输出结果
     * @return [type] [description]
     </span><span>*/</span>
    <span>public</span> <span>function</span><span> render();
}

</span><span>class</span><span> BaseCompress {
    </span><span>public</span> <span>$content</span><span>;
    </span><span>public</span> <span>$outPath</span><span>;
    </span><span>public</span> <span>$isAuto</span><span>;

    </span><span>public</span> <span>function</span> __construct(<span>$isAuto</span>=<span>false</span><span>){
        </span><span>$outPath</span> = '_file'<span>;
        </span><span>if</span>(!<span>is_dir</span>(<span>$outPath</span><span>)){
            </span><span>mkdir</span>(<span>$outPath</span><span>);
        }
        </span><span>$this</span>->outPath = <span>$outPath</span><span>;
        </span><span>$this</span>->isAuto = <span>$isAuto</span><span>;
    }


    </span><span>/*</span><span>*
     * 运行批处理
     * @return [type] [description]
     </span><span>*/</span>
    <span>public</span> <span>function</span> runBat(<span>$name</span><span>){

    }
}

</span><span>/*</span><span>*
 * 压缩javascript文件
 * 合并javascript文件
 </span><span>*/</span>
<span>class</span> CompressJS <span>extends</span> BaseCompress <span>implements</span><span> ICompress {

    </span><span>/*</span><span>*
     * 处理用户请求
     * @return [type] [description]
     </span><span>*/</span>
    <span>public</span> <span>function</span><span> request(){

    }

    </span><span>/*</span><span>*
     * 处理输出结果
     * @return [type] [description]
     </span><span>*/</span>
        <span>public</span> <span>function</span><span> render(){}

}

</span><span>/*</span><span>*
 * 压缩样式文件
 </span><span>*/</span>
<span>class</span> CompressCSS <span>extends</span> BaseCompress <span>implements</span><span> ICompress {

    </span><span>public</span> <span>function</span><span> request(){
 
    }

    </span><span>/*</span><span>*
     * 处理输出结果
     * @return [type] [description]
     </span><span>*/</span>
         <span>public</span> <span>function</span><span> render(){}
     
}

</span><span>/*</span><span>*
 * 工厂类
 </span><span>*/</span>
<span>class</span><span> Factory {

    </span><span>public</span> <span>static</span> <span>function</span> create(<span>$type</span>,<span>$isAuto</span><span>){
        </span><span>$ob</span> = <span>null</span><span>;
        </span><span>switch</span> (<span>$type</span><span>) {
            </span><span>case</span> 'js':
                <span>$ob</span> = <span>new</span> CompressJS(<span>$isAuto</span><span>);
                </span><span>break</span><span>;
            </span><span>case</span> 'css':
                <span>$ob</span> = <span>new</span> CompressCSS(<span>$isAuto</span><span>);
                </span><span>break</span><span>;
            </span><span>default</span>:
                <span>#</span><span> code...</span>
                <span>break</span><span>;
        }
        </span><span>return</span> <span>$ob</span><span>;
    }
}</span>

然后是调用处理:

<span>//</span><span>处理ajax请求</span>
<span>if</span>(<span>isset</span>(<span>$_POST</span>['submit'<span>])){
    </span><span>//</span><span>是否自动执行批处理</span>
    <span>$isAuto</span> = <span>$_POST</span>['zip'] === 'true' ? <span>true</span> : <span>false</span><span>;
    </span><span>//</span><span>处理类型</span>
    <span>$type</span> = <span>$_POST</span>['type'<span>];

    </span><span>$c</span> = Factory::create(<span>$type</span>,<span>$isAuto</span><span>);<br>
    //接口方法
    </span><span>$c</span>-><span>request();
    </span><span>$c</span>-><span>render();

}</span><span>else</span><span>{
    </span><span>echo</span> '请使用静态页访问本程序:<a href="index.html">点此进入</a>'<span>;
}</span>

大致的骨架就出来了。具体的填码过程就比较简单了。稍微有点难度的就是执行批处理这个一方法.

是网上提供的方法,以后可能用的上,这里特意贴一下:

<span>public</span> <span>function</span> runBat(<span>$name</span><span>){
        </span><span>if</span>(!<span>file_exists</span>(<span>$name</span>) || !<span>$this</span>-><span>isAuto){
            </span><span>return</span><span>;
        }
        </span><span>//</span><span>转入后台处理</span>
        @<span>exec</span>(<span>pclose</span>(<span>popen</span>("start /B ". <span>escapeshellcmd</span>(<span>$name</span>), "r"<span>)));
    }</span>

在前面的index.html中,有一个name="noBuild"这个是我人为添加的,这是因为我要过滤这种标识的js文件,这样以后要过滤别的文件,也只要添加这个标识就可以了,不用改php代码。由于是内部使用,没有做表单项来指定工程的路径,默认就是index.html所处的上级目录即为工程目录。这样设计简化了操作,提高了效率。

关于遍历特定的文件,我推荐glob函数,很简洁的方案:

<span>$files</span> = <span>glob</span>(<span>$path</span>.'/*.css',GLOB_NOSORT);

下面是工程目录结构图:

再来一张运行效果图:

  

最后是处理结果图:

终于不用写grunt的配置和安装node这个家伙了,再也不担心更新的时候,从svn上拉下来一堆node的东西,是时候和它们说再见了:

好像忘了展示前端代码了:

<span>/*</span><span>*
 * 选项卡类
 * @param {string} id 选项卡的ID
 </span><span>*/</span>
<span>function</span><span> Tabs(id){
    </span><span>var</span> node = document.querySelector('#'+<span>id);
    </span><span>var</span> selected = node.querySelector('.selected'<span>);
    </span><span>this</span>.selected =<span> selected;
    </span><span>this</span>.node =<span> node;
    </span><span>this</span><span>.bindEvent();
}

</span><span>/*</span><span>*
 * 切换选项卡
 * @param  {object} event 事件
 * @return {[type]}   [description]
 </span><span>*/</span><span>
Tabs.prototype.change </span>= <span>function</span><span>(event){
    </span><span>var</span> element =<span> event.target;
    </span><span>if</span>(element.tagName.toLowerCase()=='li'<span>){
        </span><span>if</span>(element.className=='selected'<span>){
            </span><span>return</span><span>;
        }
    }</span><span>else</span><span>{
        </span><span>while</span>(element != <span>this</span><span>.node){
            element </span>=<span> element.parentNode;
            </span><span>if</span>(element.tagName.toLowerCase()=='li'<span>){
                </span><span>break</span><span>;
            }
        }
        </span><span>if</span>(element == <span>this</span>.node) <span>return</span><span>;
    }
    </span><span>this</span>.selected.removeAttribute('class'<span>);
    element.className </span>= 'selected'<span>;
    </span><span>this</span>.selected =<span> element;
    </span><span>this</span><span>.content();
}

Tabs.prototype.content </span>= <span>function</span><span>(){
  </span><span>var</span> form =<span> document.form1;

    </span><span>switch</span>(<span>this</span><span>.getTabType()){
      </span><span>case</span> 'js'<span>:
        form.style.display </span>= 'block'<span>;
        form.children[</span>0].innerHTML = '自动压缩JS'<span>;
        </span><span>break</span><span>;
      </span><span>case</span> 'css'<span>:
        form.style.display </span>= 'block'<span>;
        form.children[</span>0].innerHTML = '自动压缩CSS'<span>;
        </span><span>break</span><span>;
      </span><span>default</span><span>:
    }
}</span>

会前端和后端,就是这么任性。轻轻一点,告别烦恼!造自己的工具,让别人去苦逼吧,So easy!

以上就介绍了自己动手,丰衣足食.,包括了方面的内容,希望对PHP教程有兴趣的朋友有所帮助。

声明
本文内容由网友自发贡献,版权归原作者所有,本站不承担相应法律责任。如您发现有涉嫌抄袭侵权的内容,请联系admin@php.cn
php怎么把负数转为正整数php怎么把负数转为正整数Apr 19, 2022 pm 08:59 PM

php把负数转为正整数的方法:1、使用abs()函数将负数转为正数,使用intval()函数对正数取整,转为正整数,语法“intval(abs($number))”;2、利用“~”位运算符将负数取反加一,语法“~$number + 1”。

php怎么实现几秒后执行一个函数php怎么实现几秒后执行一个函数Apr 24, 2022 pm 01:12 PM

实现方法:1、使用“sleep(延迟秒数)”语句,可延迟执行函数若干秒;2、使用“time_nanosleep(延迟秒数,延迟纳秒数)”语句,可延迟执行函数若干秒和纳秒;3、使用“time_sleep_until(time()+7)”语句。

php怎么除以100保留两位小数php怎么除以100保留两位小数Apr 22, 2022 pm 06:23 PM

php除以100保留两位小数的方法:1、利用“/”运算符进行除法运算,语法“数值 / 100”;2、使用“number_format(除法结果, 2)”或“sprintf("%.2f",除法结果)”语句进行四舍五入的处理值,并保留两位小数。

php怎么根据年月日判断是一年的第几天php怎么根据年月日判断是一年的第几天Apr 22, 2022 pm 05:02 PM

判断方法:1、使用“strtotime("年-月-日")”语句将给定的年月日转换为时间戳格式;2、用“date("z",时间戳)+1”语句计算指定时间戳是一年的第几天。date()返回的天数是从0开始计算的,因此真实天数需要在此基础上加1。

php怎么判断有没有小数点php怎么判断有没有小数点Apr 20, 2022 pm 08:12 PM

php判断有没有小数点的方法:1、使用“strpos(数字字符串,'.')”语法,如果返回小数点在字符串中第一次出现的位置,则有小数点;2、使用“strrpos(数字字符串,'.')”语句,如果返回小数点在字符串中最后一次出现的位置,则有。

php怎么替换nbsp空格符php怎么替换nbsp空格符Apr 24, 2022 pm 02:55 PM

方法:1、用“str_replace("&nbsp;","其他字符",$str)”语句,可将nbsp符替换为其他字符;2、用“preg_replace("/(\s|\&nbsp\;||\xc2\xa0)/","其他字符",$str)”语句。

php怎么设置implode没有分隔符php怎么设置implode没有分隔符Apr 18, 2022 pm 05:39 PM

在PHP中,可以利用implode()函数的第一个参数来设置没有分隔符,该函数的第一个参数用于规定数组元素之间放置的内容,默认是空字符串,也可将第一个参数设置为空,语法为“implode(数组)”或者“implode("",数组)”。

php字符串有没有下标php字符串有没有下标Apr 24, 2022 am 11:49 AM

php字符串有下标。在PHP中,下标不仅可以应用于数组和对象,还可应用于字符串,利用字符串的下标和中括号“[]”可以访问指定索引位置的字符,并对该字符进行读写,语法“字符串名[下标值]”;字符串的下标值(索引值)只能是整数类型,起始值为0。

See all articles

热AI工具

Undresser.AI Undress

Undresser.AI Undress

人工智能驱动的应用程序,用于创建逼真的裸体照片

AI Clothes Remover

AI Clothes Remover

用于从照片中去除衣服的在线人工智能工具。

Undress AI Tool

Undress AI Tool

免费脱衣服图片

Clothoff.io

Clothoff.io

AI脱衣机

AI Hentai Generator

AI Hentai Generator

免费生成ai无尽的。

热门文章

R.E.P.O.能量晶体解释及其做什么(黄色晶体)
2 周前By尊渡假赌尊渡假赌尊渡假赌
仓库:如何复兴队友
4 周前By尊渡假赌尊渡假赌尊渡假赌
Hello Kitty Island冒险:如何获得巨型种子
3 周前By尊渡假赌尊渡假赌尊渡假赌

热工具

Dreamweaver CS6

Dreamweaver CS6

视觉化网页开发工具

禅工作室 13.0.1

禅工作室 13.0.1

功能强大的PHP集成开发环境

适用于 Eclipse 的 SAP NetWeaver 服务器适配器

适用于 Eclipse 的 SAP NetWeaver 服务器适配器

将Eclipse与SAP NetWeaver应用服务器集成。

mPDF

mPDF

mPDF是一个PHP库,可以从UTF-8编码的HTML生成PDF文件。原作者Ian Back编写mPDF以从他的网站上“即时”输出PDF文件,并处理不同的语言。与原始脚本如HTML2FPDF相比,它的速度较慢,并且在使用Unicode字体时生成的文件较大,但支持CSS样式等,并进行了大量增强。支持几乎所有语言,包括RTL(阿拉伯语和希伯来语)和CJK(中日韩)。支持嵌套的块级元素(如P、DIV),

Atom编辑器mac版下载

Atom编辑器mac版下载

最流行的的开源编辑器