Go语言与其他语言的区别和相似之处

package main

import (
    "fmt"
    "time"
)

func main() {
    ch := make(chan int)
    
    go func() {
        ch <- 1
    }()
    
    fmt.Println(<-ch)
}

package main

import (
    "errors"
    "fmt"
)

func divide(a, b int) (int, error) {
    if b == 0 {
        return 0, errors.New("division by zero")
    }
    return a / b, nil
}

func main() {
    result, err := divide(10, 0)
    if err != nil {
        fmt.Println("Error:", err)
    } else {
        fmt.Println("Result:", result)
    }
}

package main

import "fmt"

type Shape interface {
    area() float64
}

type Circle struct {
    radius float64
}

func (c Circle) area() float64 {
    return 3.14 * c.radius * c.radius
}

func printArea(s Shape) {
    fmt.Println("Area:", s.area())
}

func main() {
    c := Circle{radius: 3}
    printArea(c)
}

package main

import (
    "fmt"
    "math"
)

func main() {
    fmt.Println("Square root of 16:", math.Sqrt(16))
}