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游戏中的算法与计算思维 05:延时翻回与输入锁 · App Inventor 2 中文网

...成工程 .aia 这课解决什么 不匹配时先显示两张,启用专门翻回计时器并锁定输入。计时器只执行一次就关闭,翻回两张、清空索引、解锁。新局必须关闭旧计时器,避免旧回调修改新牌。 先预测,再...
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nginx server_name wildcard or catch-all

...ich serves several websites. The first is a status message on the server's IP address. The second is an admin console on admin.domain.com . These work great. Now I'd like all other domain requests to go to a single index.php - I have loads of domains and subdomains and it's impractical to list th...
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App Inventor 2 SemiCircleArc 扩展:高级自定义半圆进度条 · App Inventor 2 中文网

...持进度条、占位条和背景的渐变色。 双文本支持:同时显示百分比和自定义标签文字(例如”加载中…“)。 自定义字体:从素材或存储加载自定义字体(TTF/OTF)。 完全自定义:控制所有元素的颜色、大小、宽度和内边...
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Java JDBC - How to connect to Oracle using Service Name instead of SID

...lso specify the TNS name in the JDBC URL as below: jdbc:oracle:thin:@(DESCRIPTION =(ADDRESS_LIST =(ADDRESS =(PROTOCOL=TCP)(HOST=blah.example.com)(PORT=1521)))(CONNECT_DATA=(SID=BLAHSID)(GLOBAL_NAME=BLAHSID.WORLD)(SERVER=DEDICATED))) ...
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使用 JSON 和 Web API · App Inventor 2 中文网

... 以下示例使用了这些组件: 按钮 标签 列表显示框 Web客户端 获取数据 Web客户端组件提供了一个 执行GET请求 方法,当请求完成时Web客户端的 获得文本 事件块将触发,该事件有两个重要参数: ...
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Arduino 101 实验03 - 读一个按钮,数据从板子推到手机 · App Inventor 2 中文网

...得到什么 按下接在板子上的按钮,手机上立刻显示「按下」并把计数加一;松开显示「松开」。 前两篇都是手机→板子(写),这一篇是板子→手机(读)。所有传感器实验都是这个方向, 套路完全一样:订阅 → ...
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How to give System property to my test via Gradle and -D

...e property by passing it with it -P: test { systemProperty "cassandra.ip", project.getProperty("cassandra.ip") } or alternatively, if you are passing it in via -D test { systemProperty "cassandra.ip", System.getProperty("cassandra.ip") } ...
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场景自适应(AdaptiveExperience)使用指导 · App Inventor 2 中文网

...下一步。 接住完成事件与错误事件,将原始 JSON 或错误显示在标签。先确认原始结果,再编写业务处理。 改变窗口大小后刷新场景,推荐值仅供布局决策;组件不会替你移动已有组件。 案例一:读取当前场景 ...
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httpd: Could not reliably determine the server's fully qualified domain name, using 127.0.0.1 for Se

...m Choose an FQDN and include it both in your /etc/hosts file on both the IPv4 and IPv6 addresses you are using (in your case, localhost or 127.0.0.1), and change your ServerName in your httpd configuration to match. /etc/hosts: 127.0.0.1 localhost.localdomain localhost host.server4-245.com ::...
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How do I find where an exception was thrown in C++?

...ntext; // Get the address at the time the signal was raised from the EIP (x86) void * caller_address = (void *) uc->uc_mcontext.eip; std::cerr << "signal " << sig_num << " (" << strsignal(sig_num) << "), address is " &l...