package main

import (
  "strings"
)

func main() {

  a := "hi"
  b := "hello world"
  fmt.Println(strings.Compare(a, b))
  fmt.Println(strings.Compare(a, a))
  fmt.Println(strings.Compare(b, a))
  fmt.Println(strings.EqualFold("GO", "go"))
  fmt.Println(strings.EqualFold("壹", "一"))
}

输出：

1    
0    
-1   
true 
false