Add function PrintMap() in Go

codes/go/pkg/print_utils.go

@@ -1,6 +1,6 @@
 // File: print_utils.go
 // Created Time: 2022-12-03
-// Author: Reanon (793584285@qq.com), Krahets (krahets@163.com)
+// Author: Reanon (793584285@qq.com), Krahets (krahets@163.com), msk397 (machangxinq@gmail.com)
 
 package pkg
 
@@ -96,3 +96,10 @@ func showTrunk(t *trunk) {
 	showTrunk(t.prev)
 	fmt.Print(t.str)
 }
+
+// PrintHashMap Print a hash map
+func PrintMap(m map[int]string) {
+	for key, value := range m {
+		fmt.Printf("%d -> %s\n", key, value)
+	}
+}