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                合規國際互聯網加速 OSASE為企業客戶提供高速穩定SD-WAN國際加速解決方案。 廣告
                ~~~ package main import ( "net" "fmt" "time" ) func main() { // 組織一個 udp 地址結構, 指定服務器的IP+port srvAddr, err := net.ResolveUDPAddr("udp", "127.0.0.1:8006") if err != nil { fmt.Println("ResolveUDPAddr err:", err) return } fmt.Println("udp 服務器地址結構,創建完程!!!") // 創建用戶通信的 socket udpConn, err := net.ListenUDP("udp", srvAddr) if err != nil { fmt.Println("ListenUDP err:", err) return } defer udpConn.Close() fmt.Println("udp 服務器通信socket創建完成!!!") // 讀取客戶端發送的數據 buf := make([]byte, 4096) for { // 返回3個值,分別是 讀取到的字節數, 客戶端的地址, error n, cltAddr, err := udpConn.ReadFromUDP(buf) // --- 主go程讀取客戶端發送數據 if err != nil { fmt.Println("ReadFromUDP err:", err) return } // 模擬處理數據 fmt.Printf("服務器讀到 %v 的數據:%s\n", cltAddr, string(buf[:n])) go func() { // 每有一個客戶端連接上來,啟動一個go程 寫數據。 // 提取系統當前時間 daytime := time.Now().String() + "\n" // 回寫數據給客戶端 _, err = udpConn.WriteToUDP([]byte(daytime), cltAddr) if err != nil { fmt.Println("WriteToUDP err:", err) return } }() } } ~~~
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