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地图组件（高德地图） · App Inventor 2 中文网
...以及地图的经纬度。
例如，为了节省存储空间，海洋区域的缩放级别比人口稠密的城市中心区域的缩放级别更受限，因此海洋区域的缩放级别有效值可能是 1-7，城市区域的缩放级别有效值可能是 1-20。
如果缩放级别过高...
What's the difference between streams and datagrams in network programming?
...laces the call, the other answers, you say hello to each other (SYN/ACK in TCP), and then you exchange information. Once you are done, you say goodbye (FIN/ACK in TCP). If one side doesn't hear a goodbye, they will usually call the other back since this is an unexpected event; usually the client w...
How should one go about choosing a default TCP/IP port for a new service?
When developing an app that will listen on a TCP/IP port, how should one go about selecting a default port? Assume that this app will be installed on many computers, and that avoiding port conflicts is desired.
...
port forwarding in windows
...k for me on Windows7 nor on Windows Server 2003. I had to specify protocol=tcp parameter too. Full command: netsh interface portproxy add v4tov4 listenport=4422 listenaddress=192.168.1.111 connectport=80 connectaddress=192.168.0.33 protocol=tcp
– alwi
Sep 15 '1...
socks5代理工作流程及技术原理 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...oxy-protocolsocks5协议是一款广泛使用的代理协议，它在使用TCP IP协议通讯的前端机器和服务器机器之间扮演一个中介角色，使得内部网中的前端机器变得能够访问Internet网中的服 一、socks5协议
socks5协议是一款广泛使用的代理协...
cn.fun123.ClientSocketAI2Ext 中文网升级版 Socket客户端拓展，TCP通信拓...
最新版：https://www.fun123.cn/reference/ ... ctivity.html#Socket
已经加入发送二进制的接口。
原版：
报错后，App直接崩溃，没得选择，体验不好！
AppInventor2中文网升级版：
连接出错后，使用对话框组件个性展示出错信...
How to open a specific port such as 9090 in Google Compute Engine
...n, make sure the instances have the network tag applied.
To allow incoming TCP connections to port 9090, in "Protocols and Ports" enter tcp:9090
Click Create
I hope this helps you.
Update Please refer to docs to customize your rules.
...
Socket send函数和recv函数详解以及利用select()函数来进行指定时间的阻塞 ...
...t flags ); 不论是客户还是服务器应用程序都用send函数来向TCP连接的...int send( SOCKET s, const char FAR *buf, int len, int flags );
不论是客户还是服务器应用程序都用send函数来向TCP连接的另一端发送数据。
客户程序一般用send函数向服务器...
How do SO_REUSEADDR and SO_REUSEPORT differ?
... a couple of basics you should know before we look at these two options. A TCP/UDP connection is identified by a tuple of five values:
{<protocol>, <src addr>, <src port>, <dest addr>, <dest port>}
Any unique combination of these values identifies a connection. As a r...
Do HTML WebSockets maintain an open connection for each client? Does this scale?
... doesn't mean WebSockets is a replacement for all uses of AJAX/HTML.
Each TCP connection in itself consumes very little in terms server resources. Often setting up the connection can be expensive but maintaining an idle connection it is almost free. The first limitation that is usually encountered ...