探索Go语言的无限可能性

package main

import (
    "fmt"
    "time"
)

func printNumbers() {
    for i := 1; i <= 5; i++ {
        fmt.Printf("%d ", i)
        time.Sleep(time.Second)
    }
}

func printLetters() {
    for i := 'a'; i < 'e'; i++ {
        fmt.Printf("%c ", i)
        time.Sleep(time.Second)
    }
}

func main() {
    go printNumbers()
    go printLetters()

    time.Sleep(6 * time.Second)
    fmt.Println("Main goroutine 结束")
}

package main

import (
    "fmt"
    "net"
)

func handleConnection(conn net.Conn) {
    defer conn.Close()

    buffer := make([]byte, 1024)
    for {
        n, err := conn.Read(buffer)
        if err != nil {
            fmt.Println("Read error:", err)
            return
        }
        fmt.Print("Received message:", string(buffer[:n]))
    }
}

func main() {
    listener, err := net.Listen("tcp", "localhost:8888")
    if err != nil {
        fmt.Println("Listen error:", err)
        return
    }
    defer listener.Close()

    fmt.Println("Server started, listening on localhost:8888")

    for {
        conn, err := listener.Accept()
        if err != nil {
            fmt.Println("Accept error:", err)
            continue
        }
        go handleConnection(conn)
    }
}