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App Inventor 2 代码调试方式:App调试、问题排查方法 · App Inventor 2 中文网

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AppInventor2 在同一屏幕内制作页面滑动切换效果 - App Inventor 2 中文网 ...

...,我们来研究以下距离的关系 左侧红色方框表示可见区域,黑色方框表示整个水平滚动条布局的总长度。图中上方表示的是每一个垂直(滚动条)布局的边界的位置,即控制水平滚动条布局ScrollTo的值。下面表示的是每个布局...
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App Inventor 2 ECharts 拓展:基于 ECharts 强大的个性化数据图表展示 · ...

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App Inventor 2 TableView 拓展:TableView 拓展:数据表格视图,表格展示...

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Websocket API to replace REST API?

... The only problem I can using TCP (WebSockets) as your main web content delivery strategy is that there is very little reading material out there about how to design your website architecture and infrastructure using TCP. So you can't learn from other pe...
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How to change the port of Tomcat from 8080 to 80?

...I use the following commands: sudo /sbin/iptables -t nat -I PREROUTING -p tcp --dport 80 -j REDIRECT --to-port 8080 sudo /sbin/service iptables save http://www.excelsior-usa.com/articles/tomcat-amazon-ec2-advanced.html#port80 ...
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OceanBase使用libeasy原理源码分析:客户端 - 数据库(内核) - 清泛网 - 专...

..._t用来封装一个要发出去的请求,easy_client_t用来封装一个TCP连接的发起端,easy_hash_t是一个哈希表,easy_hash_list_t是采用开放寻址解决hash冲突的链表节点。 一、异步请求 在OceanBase 0.4 中,mergeserver请求chunkserver是异步的方式。实...
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Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)

...ost" the socket connector is used, but when you connect to "127.0.0.1" the TCP/IP connector is used. You could try using "127.0.0.1" if the socket connector is not enabled/working. share | improve t...
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关于我们 · App Inventor 2 中文网,少儿编程陪伴者

...装。      注:手机和电脑必须在同一局域网内,原理是电脑端启动WEB服务器,手机AI伴侣与WEB通信;电脑连手机热点,也是OK的。      扫码关注网页底部公众号,观看置顶视频,AI伴侣的各种测...
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What is a “callback” in C and how are they implemented?

...ack is invoked. In the following program we create a socket to listen for TCP connection requests and when a request is received, the function doing the listening then invokes the callback function provided. This simple application can be exercised by running it in one window while using the telnet...