package main

import "fmt"

func test() int {
    defer func() {
        if err := recover(); err != nil {
            fmt.Println(err)
        }
    }()
    b := 0
    a := 100 / b
    return a
}

func main() {
    test()
}

package main

import "fmt"

func test() {
    i := new(int)
    fmt.Println(i)  //0xc000012088
    fmt.Println(*i) //0

    s1 := new([]int)
    *s1 = make([]int, 5)
    fmt.Println(s1) //&[0 0 0 0 0]

    s2 := make([]int, 5)
    fmt.Println(s2) //[0 0 0 0 0]

    (*s1)[0] = 100
    s2[0] = 100
    fmt.Println(s1) //&[100 0 0 0 0]
    fmt.Println(s2) //&[100 0 0 0 0]
}

func main() {
    test()
}