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移动游戏项目弱网测试策略 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...的考验,也对我们移动项目的测试人员提出了新的问题,如何测试这种情况?总不能拿着手机去高铁上测试吧。 方法还是有的,网上的工具也挺多,今天就给小伙伴们分享一下基于fiddler这款工具的弱网测试方法。目前这款工...
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App Inventor 2 手机蓝牙及语音控制 - App Inventor 2 中文网 - 清泛IT论坛,有思想、有深度

...rduino的学习,我们对两个平台已经初步有了认识和了解,如何打通两个平台,实现利用手机对Arduino设备进行控制呢?   蓝牙是一个非常成熟的无限近程控制技术,通过蓝牙,我们可以将两者有机结合,再加上讯飞语音,甚至...
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App Inventor 2 颜色代码块 · App Inventor 2 中文网

...块 App Inventor 中的颜色如何发挥作用? 基本颜色 合成颜色 分解颜色 颜色代码块主要分为三种类型: 基本颜色 合成颜色 分解颜色 App Inventor 中的颜色如何发挥作用? 在内部,App...
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任何组件块 · App Inventor 2 中文网

... 参数为 true 组件。 考虑以下事件处理伪代码,看看它是如何工作的: 发生一个事件,例如用户单击名为 Button1 的按钮。 组件被初始化为Button1。 notAlreadyHandled 初始化为true。 App Inventor 检查 when Button1.Click 是否存在。 ...
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How to use mysql JOIN without ON condition?

... MySQL documentation covers this topic. Here is a synopsis. When using join or inner join, the on condition is optional. This is different from the ANSI standard and different from almost any other database. The effect is ...
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Count with IF condition in MySQL query

... Or even SUM(ccc_news_comments.id = 'approved') as a MySQL-specific trick – mojuba Jan 21 '13 at 20:44 1 ...
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MySQL Error 1215: Cannot add foreign key constraint

...the 4th point was my problem. It's kind of nasty - but I'm very very happy mysql did crash for that – Sebas Jun 16 '16 at 15:21  |  show 10 mo...
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Get all table names of a particular database by SQL query?

...working on application which can deal with multiple database servers like "MySQL" and "MS SQL Server". 19 Answers ...
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How to see indexes for a database or table in MySQL?

...wered Mar 6 '11 at 21:05 RolandoMySQLDBARolandoMySQLDBA 40.5k1515 gold badges8181 silver badges124124 bronze badges ...
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Return 0 if field is null in MySQL

In MySQL, is there a way to set the "total" fields to zero if they are NULL? 5 Answers ...