C 簡單的UDP通訊例子

1

1，udp客戶端23
using
system;
4using
system.collections.generic;
5using
system.componentmodel;
6using
system.data;
7using
system.drawing;
8using
system.linq;
9using
system.text;
10using
system.windows.forms;
11using
system.net.sockets;
12using
system.net;
1314
namespace
1527
28private
void button1_click(object
sender, eventargs e)
2941}42
}432，udp伺服器
4445
using
system;
46using
system.collections.generic;
47using
system.componentmodel;
48using
system.data;
49using
system.drawing;
50using
system.linq;
51using
system.text;
52using
system.windows.forms;
53using
system.net.sockets;
54using
system.net;
5556
namespace
5769
70private
void button1_click(object
sender, eventargs e)
7176}77
}783，讀接收緩衝區當前資料個數
7980
using
system;
81using
system.collections.generic;
82using
system.componentmodel;
83using
system.data;
84using
system.drawing;
85using
system.linq;
86using
system.text;
87using
system.windows.forms;
88using
system.net.sockets;
89using
system.net;
9091
namespace
92104
105private
void button1_click(object
sender, eventargs e)
106115
}116
}117
118119
4，上例有點複雜，看下面的例子，這個例子還可以說明如何設定非阻塞socket通訊
120121
using
system;
122using
system.collections.generic;
123using
system.componentmodel;
124using
system.data;
125using
system.drawing;
126using
system.linq;
127using
system.text;
128using
system.windows.forms;
129using
system.net.sockets;
130using
system.net;
131132
namespace
133146
147private
void button1_click(object
sender, eventargs e)
148157
}158
}159
}160
5，上面的例子是同步非阻塞的例子，但預設是同步阻塞的。除此之外還有非同步的通訊方式（事件通知的方式觸發），稍微複雜，以後補充。

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