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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/...
...原理
用pt-table-sync修复不一致的数据 描述了工具原理
操作过程
只把过程和用到的东西解释了下，有些参数选项等还需要查阅文档。两台机器都是centos6.5 mysql版本都是5.6 , 由于是线上环境，这里ip和密码等敏感信息修改了下。...
NSLog the method name with Objective-C in iPhone
...happens to be implemented as a C-string (as of the current versions of Mac OS X and the iPhone OS) doesn't mean you should use it in that way, since Apple could change it in an OS update.
– Nick Forge
May 5 '10 at 8:06
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Slow Requests on Local Flask Server
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Ok I figured it out. It appears to be an issue with Werkzeug and os's that support ipv6.
From the Werkzeug site http://werkzeug.pocoo.org/docs/serving/:
On operating systems that support ipv6 and have it configured such as modern Linux systems, OS X 10.4 or higher as well as Windows V...
组件美化使用指导 · App Inventor 2 中文网
...法与事件速查
常见问题与验收
完整 .aia 源码与操作指导
我的设备信息卡
先运行这个实际案例
不可见工具组件：给组件添加圆角、边框、渐变背景、卡片阴影、字体和行距字距，...
App Inventor 2 考勤系统教程 - 定位打卡与二维码签到 · App Inventor 2 中文网
... App Inventor 2 考勤系统教程 - 定位打卡与二维码签到
概述
方案一：GPS定位打卡
原理
界面设计
积木块代码
Haversine距离计算
方...
App Inventor 2 拓展参考文档 · App Inventor 2 中文网
...持播放控制
【唤醒】KeepAwake 保持唤醒扩展：防止App被操作系统停用
【唤醒】WakeLock 扩展：保持设备唤醒扩展，防止系统休眠和电池优化
【传感器保持】SensorUtil 传感器工具扩展：在后台和屏幕关闭时保持传感器工作
【手...
怎么往SetTimer的回调函数传递参数 - C/C++ - 清泛网 - 专注C/C++及内核技术
...息，然后处理之，这个过程有两个参与者，一 个是windows系统，它主要负责投递消息，收不收是用户线程的事，另一个就是用户线程，它主要负责取出消息并处理消息，即使用户线程因为睡眠或者根本 就没有设定消息循环，系统...
Java NIO FileChannel versus FileOutputstream performance / usefulness
...leChannel.transferFrom(). The key advantage here is that the JVM uses the OS's access to DMA (Direct Memory Access), if present. (This is implementation dependent, but modern Sun and IBM versions on general purpose CPUs are good to go.) What happens is the data goes straight to/from disc, to the b...
Format a Go string without printing?
...te: you may also display the result of a template execution if you provide os.Stdout as the target (which also implements io.Writer):
t := template.Must(template.New("email").Parse(emailTmpl))
if err := t.Execute(os.Stdout, data); err != nil {
panic(err)
}
This will write the result directly ...
Change IPython/Jupyter notebook working directory
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Confirmed this does work on Mac OSX, for jupyterlab 0.31.5 / IPython 6.2.1
– Brad Solomon
Feb 11 '18 at 16:48
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