Go language mapping operation

package main

import "fmt"

// Creating and using maps 
func main() {
    
	//  Create a map , The type of bond is  string, The type of value is  int
	dict:=make(map[string]int)
		fmt.Println(dict)
	//  Create a map , The types of keys and values are  string
	//  Initialize the mapping with two key value pairs 
	dict1:=map[string]string {
    "apple":"good","orange":"bad"}
		fmt.Println(dict1)
	//  Create a map , You cannot use string slices as keys for mapping , But you can use slices as values 
	//dict2:=map[string[]]int{}// Compile error 
	dict2:=map[string][]string{
    }
	dict3:=map[int][]string{
    }
		fmt.Println(dict2)
		fmt.Println(dict3)
	// Use  range  Iterative mapping , Return key value pair 
	// Create a map 
	dict4:=map[string]int{
    "a":1,"b":2,"c":3,"d":4}
		fmt.Println(dict4)
	for key,value:=range dict4{
    
		fmt.Printf("key:%s value:%d\n",key,value)
	}
	// Determine whether there are key value pairs 
	var str string="s"
	value,exists:=dict4[str]
	if exists {
    
		fmt.Printf(" There are keys %s Match value of , Its value is %d\n",str,value)
	}else 
	{
    
		fmt.Printf(" There is no bond %s Match value of \n",str)
	}
    delete(dict4,"a")// Delete a key value pair 
		fmt.Println(dict4)

	// Transfer mapping between functions 
	ss:=map[string]int{
    "s1":1,"s2":2,"s3":3,"s4":4}
		fmt.Println(ss)
	ss1:=Remove(ss)
		fmt.Println(ss1)
}
func Remove(ss map[string]int) map[string]int {
    
	delete(ss,"s1")
	return ss
}
/*  Output results  map[] map[apple:good orange:bad] map[] map[] map[a:1 b:2 c:3 d:4] key:a value:1 key:b value:2 key:c value:3 key:d value:4  There is no bond s Match value of  map[b:2 c:3 d:4] map[s1:1 s2:2 s3:3 s4:4] map[s2:2 s3:3 s4:4] */