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按钮形状问题 - App应用开发 - 清泛IT社区，为创新赋能！
...过弧度很小，也没有地方可以调整弧度的。可能不同手机显示效果会有细微差别，可以尝试使用背景图片，这样显示效果就完全可控且一致。
BLE 接收BLE模块发来的信息 - 创客硬件开发 - 清泛IT社区，为创新赋能！
如何编程可以接收BLE模块，发送给手机APP的消息数据，并显示呢 求指教ble 设备连接，发送数据到硬件请参考：https://bbs.tsingfun.com/thread-1844-1-1.html
读取ble数据并显示在App上请参考文档：https://www.fun123.cn/reference/ ... ml#RegisterForByte...
BLE &APP交互学习教程02——接收指令 - 创客硬件开发 - 清泛IT社区，为创新赋能！
BLE模块性价比高，无需配对就可以连接使用，本节开始，我们来学习使用BLE接收并显示。1.界面设计
2.逻辑设计
3.APP工程
4.小结
BLE模块的发送和接收短接，APP发送来的数据模块接收后显示在输入框内。
高德地图api访问URL出错求助 - App应用开发 - 清泛IT社区，为创新赋能！
...p;key=
这个地图api为什么用“|”来分隔不同标注点的话会显示错误呢，我看教程是使用那个来分割不同标注点的啊
可以先用工具（比如 Postman）来测试一下 网络url 的Get/Post 请求情况。
还有，你的测试方式及具体报错请提供...
com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure
...achable at all. This can have one or more of the following causes:
IP address or hostname in JDBC URL is wrong.
Hostname in JDBC URL is not recognized by local DNS server.
Port number is missing or wrong in JDBC URL.
DB server is down.
DB server doesn't accept TCP/IP connections.
D...
What can be the reasons of connection refused errors?
...king for firewalls and that the port is open, use telnet to connect to the ip/port to test connectivity. This removes any potential issues from your application.
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Connect to a locally built Jekyll Server using mobile devices in the LAN
...e command line.
That will make Jekyll's HTTP server bind to all available IPs, rather than just to localhost.
You can also add this to your _config.yml with host: 0.0.0.0. GitHub will simply ignore this when you push, so it's safe to use if you don't mind having your work openly accessible on your...
HTTP test server accepting GET/POST requests
...ttps://httpbin.org/anything Returns most of the below.
https://httpbin.org/ip Returns Origin IP.
https://httpbin.org/user-agent Returns user-agent.
https://httpbin.org/headers Returns header dict.
https://httpbin.org/get Returns GET data.
https://httpbin.org/post Returns POST data.
https://httpbin.o...
比尔盖茨“未来生活预言”的科技豪宅（图） - 资讯 - 清泛网 - 专注C/C++及内核技术
...
-墙上的相框其实是触摸屏 -
整个房屋的墙上都布满了显示屏，总共花费8万美元。你可以直接在屏幕上操作显示喜欢的画作或者照片，为了存储这些照片，存储设备花费了15万美元。
-游泳池也能听音乐 -
大楼里有一个6...
How do I simulate a low bandwidth, high latency environment?
... instructions, you're enabling a firewall. For just simulating a different IP connection, you could (for example) do the following:
Create a file /etc/rc.firewall.56k which contains the following:
ipfw add pipe 1 ip from any to any out
ipfw add pipe 2 ip from any to any in
ipfw pipe 1 config b...