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Random string generation with upper case letters and digits

... Simply use Python's builtin uuid: If UUIDs are okay for your purposes, use the built-in uuid package. One Line Solution: import uuid; uuid.uuid4().hex.upper()[0:6] In Depth Version: Example: import uuid uuid.uuid4() #uuid4 => full random uuid #...
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Collisions when generating UUIDs in JavaScript?

... this question . I am using the code below from this answer to generate UUID in JavaScript: 6 Answers ...
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MySQL一次主从数据不一致问题解决过程 - 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来指定需要检查数据库。 --no-check-binlog-format : 不检查复制binlog模式,要是binlog模式是ROW,则会报错。 --replicate-check-only :只显示不同步信息。 --replicate= :把checks...
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How do you create a random string that's suitable for a session ID in PostgreSQL?

... years old. Check out this for a totally different method using gen_random_uuid(): faster, more randomness, more efficiently stored in the database. – Evan Carroll Jan 12 '17 at 8:11 ...
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Generating Guids in Ruby

... 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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MFC 中CImageList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对象。 使用图像列表 构造CImageList对象,调用其Create函数一个重载来创建图像列表并将图像列表...
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菜单背景颜色 - 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: · TPM_CENTERALIGN 使弹出菜单在水平方向相对于x指定坐标居中。 · TPM_LEFTALIG...
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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 ...
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App Inventor 2 连接打印机(Printer),自定义打印实现 - App Inventor ...

...”组件将数据分享给网络打印机App,这种实现思路。 蓝牙及串口打印机,需要研究打印机数据协议(不同品牌协议有差别),暂时不在本文讨论范围。 信息分享器组件介绍 三种分享方式效果,以邮件App测试为例...
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IOException: read failed, socket might closed - Bluetooth on Android 4.3

...; 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...