go playground

package main

import (
  "fmt"
)

func main() {
  fmt.Println("Hello World")
}

go playground

package main

import (
  "fmt"
  "math/rand"
  "time"
)

func main() {
  for i := 0; i < 10; i++ {
    dur := time.Duration(rand.Intn(1000)) * time.Millisecond
    fmt.Printf("Sleeping for %v\n", dur)
    // Sleep for a random duration between 0-1000ms
    time.Sleep(dur)
  }
  fmt.Println("Done!")
}

go playground

package main

import (
  "fmt"
  "io"
  "log"
  "net"
  "net/http"
  "os"
)

func main() {
  http.HandleFunc("/hello", func(w http.ResponseWriter, r *http.Request) {
    fmt.Fprint(w, "Hello, playground")
  })

  log.Println("Starting server...")
  l, err := net.Listen("tcp", "localhost:8080")
  if err != nil {
    log.Fatal(err)
  }
  go func() {
    log.Fatal(http.Serve(l, nil))
  }()

  log.Println("Sending request...")
  res, err := http.Get("http://localhost:8080/hello")
  if err != nil {
    log.Fatal(err)
  }

  log.Println("Reading response...")
  if _, err := io.Copy(os.Stdout, res.Body); err != nil {
    log.Fatal(err)
  }
}

kotlin playground

class Contact(val id: Int, var email: String)

fun main(args: Array<String>) {
    val contact = Contact(1, "mary@gmail.com")
    println(contact.id)
}

kotlin playground

fun mul(a: Int, b: Int): Int {
    return a * b
}

fun main(args: Array<String>) {
    print(mul(-2, 4))
}

rust playground

fn main() {
    println!("Hello, world!");
}

rust playground

fn main() {
    printlnl!("Hello, world!");
}

贡献者

• pengzhanbo

变更历史

最后更新于: 查看全部变更历史

• 428b8-

  docs: update code online repl doc

  于 2024/4/24
• 7489a-

  docs: update docs

  于 2024/3/18