问题列表 - 第39416页

Generating String from List in Erlang

I'm trying to generate a formatted string based on a list:

[{"Max", 18}, {"Peter", 25}]
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To a string:

"(Name: Max, Age: 18), (Name: Peter, Age: 35)"
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string erlang list

3
推荐指数
1
解决办法
9709
查看次数

How to find out from the Windows registry where IE is installed?

I can find out where Firefox is installed as follows; query this key to get the current version:

HKEY_LOCAL_MACHINE\SOFTWARE\Mozilla\Mozilla Firefox
    CurrentVersion
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... then query this key to get the installed path (where "nnn" is the version number obtained above):

HKEY_LOCAL_MACHINE\SOFTWARE\Mozilla\Mozilla Firefox\nnn\Main
    Install Directory
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But I can't work out how to find where IE is installed. What key or keys will work on Windows XP, Windows Server 2003, and later?

registry internet-explorer

2
推荐指数
1
解决办法
1万
查看次数

Forcing Remote Repo to Compress (GC) with Git

I'm using Git to version a series of binary files. They compress pretty well, but my central repos do not seem to be compressing when I push to them. They're eating up a decent amount of my quota, so I was looking to see if there was a way to force the remote repo to do a GC.

Is this possible? I'm working on Project Locker so I don't believe I have SSH access to go in and GC the …

git git-remote git-gc

10
推荐指数
1
解决办法
9865
查看次数

How to say "Any Character" in regular expression?

I want to search for a line which starts with lets say a and ends with z. In-between any number of any character can come. How can i write an expression for this? ( I dont want to explicity mention any digits, any special chars, any alphabets ) I don't to do something like ^[0-9,a-z,A-Z,list all special chars]*$.

regex

3
推荐指数
1
解决办法
1211
查看次数

1
推荐指数
1
解决办法
461
查看次数

Cygwin不被Cabal认可为Unix兼容性工具链

问候,

尝试在Windows 7和Cygwin中使用Cabal 安装示例Snap Framework项目.

cabal install
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在我的cygwin项目结束时

解决依赖关系...配置unix-2.4.1.0 ... cabal.exe:该软件包有一个'./configure'脚本.这需要Unix兼容性工具链,如MinGW + MSYS或Cygwin.cabal.exe:错误:某些软件包无法安装:proj-0.1依赖于无法安装的unix-2.4.1.0.配置步骤中unix-2.4.1.0失败.例外是:ExitFailure 1

可悲的是,我在cygwin里面得到了这个.

到目前为止,我发现这个讨论引用了一个类似的问题,但是它提出的解决方案(安装MinGW)似乎有点矫枉过正,因为事情应该在cygwin中运行.

我对Haskell相当新,所以不确定我应该使用哪些conf文件或者实际的依赖项是什么.指出我正确的方向将非常感激.

cygwin haskell cabal

8
推荐指数
1
解决办法
2088
查看次数

通过单击按钮切换到主Activity的下一个屏幕

我正在开发一个应用程序,当我点击主活动屏幕的图像按钮时,我需要进入主屏幕的下一个屏幕.

我在网上搜索了一下这个,发现了像OnClickListener方法.我仍然坚持我究竟想要做什么.

任何人都可以告诉我如何做同样的事情.

谢谢,大卫

android switching buttonclick

3
推荐指数
1
解决办法
1万
查看次数

两个子集之和的最小差异

伙计们,

遇到了一个问题......发现这个问题...我正在修改它只是一点点.

给定一组整数(范围0-500),找到两个子集的总和之间的最小差异,这两个子集可以通过几乎相等地分割它们来形成.(假设整数计数为n,如果n为偶数,则每组必须有n/2个元素,如果n为奇数,则一组具有(n-1)/ 2个元素,其他具有(n + 1)/ 2个元素)

样品输入:1 2 3 4 5 6

最小差异= 1(子集为1 4 6和2 3 5)

样本输入2:[1 1 1 1 2 2 2 2]

最小差异= 0(子集为1 1 2 2和1 1 2 2)

是否有DP方法来解决这个问题.

多谢你们...

拉吉...

algorithm subset dynamic-programming

12
推荐指数
2
解决办法
1万
查看次数

从WPF中的代码弹出不起作用(在调整大小和切换窗口时)

我想在WPF中单击一个Button时添加一个弹出窗口.我不想在我的XAML中添加Popup代码.它必须是代码背后的代码.

我的XAML如下::

<Window x:Class="Test.Window1"
      xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
      xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
      Title="Window1" Height="300" Width="300">
   <Grid>
     <Button x:Name="button1" Click="button1_Click">Button</Button>
   </Grid>
</Window>
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我的XAML文件有一个简单的按钮.单击按钮,我试图执行以下代码.

  private void button1_Click(object sender, RoutedEventArgs e)
    {
        Button button = sender as Button;

        Popup codePopup = new Popup();
        TextBlock popupText = new TextBlock();
        popupText.Text = "Popup Text";
        popupText.Background = Brushes.LightBlue;
        popupText.Foreground = Brushes.Blue;
        codePopup.Child = popupText;

        codePopup.PlacementTarget = button;
        codePopup.IsOpen = true;

    }
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但是为什么弹出窗口没有附加到窗口.我的意思是即使我切换窗口也会显示弹出窗口.另外,当我调整窗口大小时,Popup不再放在按钮附近?

wpf popup button code-behind

8
推荐指数
1
解决办法
2万
查看次数

选择的事务策略需要访问JTA TransactionManager或Unable才能构建EntityManagerFactory

我在apache tomcat5.5上使用Spring 2.0.6和Hibernate 3.2.x,现在我们计划将我们的hybernate映射文件改为hybernate + jpa支持映射文件.为此,我们创建了这样的文件

daoConfig.xml

 <beans:bean id="dataSource" 
  class="org.springframework.jndi.JndiObjectFactoryBean">
      <beans: property name="jndiName">
    <beans: value>java:/comp/jdbc/Paymentsdb</beans:value>  
   </beans: property>
  </beans: bean> 
 <beans: bean id="sessionFactory"
  class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
  <beans: property name="useTransactionAwareDataSource"
   value="true" />
  <beans: property name="dataSource">
   <beans:ref bean="dataSource"/>
  </beans: property>
  <beans: property name="hibernateProperties">
   <beans: props>
    <beans:prop key="hibernate.dialect">${database.target}</beans:prop>
    <beans:prop key="hibernate.connection.isolation">3</beans:prop>
    <beans:prop key="hibernate.current_session_context_class">jta</beans:prop>
    <beans:prop key="hibernate.transaction.factory_class">com.atomikos.icatch.jta.hibernate3.AtomikosJTATransactionFactory
    </beans:prop>
    <beans: prop key="hibernate.transaction.manager_lookup_class">com.atomikos.icatch.jta.hibernate3.TransactionManagerLookup
    </beans: prop>
    <beans: prop key="hibernate.connection.release_mode">on_close</beans: prop>
    <beans: prop key="hibernate.show_sql">false</beans: prop>
   </beans: props>
  </beans: property>
 </beans: bean>

 <beans: bean id="jpaTemplate"
  class="org.springframework.orm.jpa.JpaTemplate">
  <beans: property name="entityManagerFactory">
   <beans:ref bean="entityManagerFactory" />
  </beans: property> …
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spring hibernate jpa jta

8
推荐指数
2
解决办法
2万
查看次数