大约有 3,300 项符合查询结果(耗时:0.0198秒) [XML]

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一文讲透区块链技术原理 - 资讯 - 清泛网 - 专注C/C++及内核技术

...一的、全新的技术,而是多种现有技术(如加密算法、P2P文件传输等)整合的结果,这些技术与数据库巧妙地组合在一起,形成了一种新的数据记录、传递、存储与呈现的方式。简单的说,区块链技术就是一种大家共同参与记录...
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栈和队列的面试题Java实现 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...这样的话,会存在一个问题:如果最小的元素出栈了,那怎么知道剩下的元素中哪个是最小的元素呢? 改进思路: 这里需要加一个辅助栈,用空间换取时间。辅助栈中,栈顶永远保存着当前栈中最小的数值。具体是这样的:...
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How to Programmatically Add Views to Views

...coding="utf-8"?> <TextView xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent"> </TextView> BTW, set the layout-params of your frameLayout to wrap_content always else the frame layout will become as...
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How to check edittext's text is email address or not?

...ps Step 1 : <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" tools:context=".MainActivity" > <EditText android:id=...
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How to make a edittext box in a dialog

...ng="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:gravity="center_horizontal" android:orientation="vertical"> <EditText android:id="@+id/etCo...
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The key must be an application-specific resource id

...ml and write: <resources xmlns:android="http://schemas.android.com/apk/res/android"> <item name="TAG_ONLINE_ID" type="id"/> </resources> I think it's better to create a separate file instead of putting it in strings.xml as EtienneSky suggested. ...
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App Inventor 2开发计步器与定位器 - App Inventor 2 中文网 - 清泛IT论坛,有思想、有深度

...传感器行为程序片段 【测试】 通过AI伴侣或者直接打包APK程序,点击“开始”按钮,晃动手机或实际不行测试,观察其中的数据。 注意: 1、其中的位置传感器可能需要到空旷地带才能获得gps信号,因此,在室内测试时位置...
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What Android tools and methods work best to find memory/resource leaks? [closed]

...="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:id="@+id/RootView" > ... Then, on the onDestroy() method of your Activity, call the unbindDrawable...
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How to manually include external aar package using new Gradle Android Build System

...ck.aar'. What I'm trying to do is actually use this aar to build my final APK. If I include the whole ActionBarSherlock library as an android-library module to my main project using compile project (':actionbarsherlock') I'm able to build successfully without any problems. ...
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关于php的socket初探 - PHP - 清泛IT论坛,有思想、有深度

... socket起源于Unix,而Unix/Linux基本哲学之一就是“一切皆文件”,都可以用“打开open –> 读写write/read –> 关闭close”模式来操作。我的理解就是Socket就是该模式的一个实现,socket即是一种特殊的文件,一些socket函数就是对其...