slice-trap.go

package main

import (
	"fmt"
	"sort"
)

func main() {
	s := []rune("helloworld")
	s1 := []rune(s[0:5])
	fmt.Println("before: ",string(s1))
	sort.Slice(s1, func (i,j int) bool{
		return s1[i]<s1[j]
	})
	fmt.Println("after: ", string(s1))
}