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Generating Guids in Ruby
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As of Ruby 1.9, uuid generation is built-in. Use the SecureRandom.uuid function.
For example:
require 'securerandom'
SecureRandom.uuid # => "96b0a57c-d9ae-453f-b56f-3b154eb10cda"
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MySQL一次主从数据不一致的问题解决过程 - 数据库(内核) - 清泛网 - 专注C/...
... ：不检查复制过滤器，建议启用。后面可以用--databases来指定需要检查的数据库。 --no-check-binlog-format : 不检查复制的binlog模式，要是binlog模式是ROW，则会报错。 --replicate-check-only :只显示不同步的信息。 --replicate= ：把checks...
How to find serial number of Android device?
...oogle's recommendations, I implemented a class that will generate a unique UUID for each device, using ANDROID_ID as the seed where appropriate, falling back on TelephonyManager.getDeviceId() as necessary, and if that fails, resorting to a randomly generated unique UUID that is persisted across app ...
MFC 中CImageList的用法 - C/C++ - 清泛网 - 专注C/C++及内核技术
...产生显露目标DC背景色的透明区域。绘制屏蔽图像时可以指定几种绘图样式。例如，可以指定图像进行抖色处理以指示选定的对象。
使用图像列表
构造CImageList对象，调用其Create函数的一个重载来创建图像列表并将图像列表...
IOException: read failed, socket might closed - Bluetooth on Android 4.3
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import java.lang.reflect.Method;
import java.util.List;
import java.util.UUID;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothSocket;
import android.util.Log;
public class BluetoothConnector {
private BluetoothSocketWra...
How do I create a unique ID in Java? [duplicate]
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Create a UUID.
String uniqueID = UUID.randomUUID().toString();
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The JPA hashCode() / equals() dilemma
... it. I let JPA implementation to change the field instead of the property.
UUID solution seems to be overkill. Why UUID if you have natural business id? I would after all set the uniqueness of the business id in the database. Why having THREE indexes for each table in the database then?
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菜单的背景颜色 - C/C++ - 清泛网 - 专注C/C++及内核技术
...“MFC类库详解”中有关参数nFlags的解释如下：
指定屏幕位置标志或鼠标键标志。
屏幕位置标志可以为下列值之一：
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TPM_CENTERALIGN
使弹出菜单在水平方向相对于x指定的坐标居中。
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TPM_LEFTALIG...
nsis指定默认安装路径，记住上次安装路径 - 脚本技术 - 清泛IT论坛，有思想...
...ws\CurrentVersion\App Paths\Test.exe" "Path"
InstallDir 指定$INSTDIR值为"C:\Test"；InstallDirRegKey 指定$INSTDIR值为注册表中的键值。
后面的设置覆盖前面的。
How to create GUID / UUID?
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UUIDs (Universally Unique IDentifier), also known as GUIDs (Globally Unique IDentifier), according to RFC 4122, are identifiers designed to provide certain uniqueness guarantees.
While it is possible to implement an RFC-comp...