Maps and bookmarks app

go-demo-3/main.go

@@ -2,15 +2,64 @@ package main
 
 import "fmt"
 
+type bookmarkMap = map[string]string
+
 func main() {
-	m := map[string]string{
-		"PurpleSchool": "https://purpleschool.ru",
-	}
-	m["Google"] = "https://google.com"
-	m["Gmail"] = "https://gmail.com"
-	fmt.Println(m)
-	delete(m, "Gmail")
-	for _, v := range m {
-		fmt.Println(v)
+	bookmarks := bookmarkMap{}
+	fmt.Println(bookmarks["a"])
+	fmt.Println("Приложение для закладок")
+Menu:
+	for {
+		variant := getMenu()
+		switch variant {
+		case 1:
+			printBookmarks(bookmarks)
+		case 2:
+			bookmarks = addBookmark(bookmarks)
+		case 3:
+			bookmarks = deleteBookmark(bookmarks)
+		case 4:
+			break Menu
+		}
 	}
 }
+
+func getMenu() int {
+	var variant int
+	fmt.Println("Выберите вариант")
+	fmt.Println("1. Посмотреть закладки")
+	fmt.Println("2. Добавить закладку")
+	fmt.Println("3. Удалить закладку")
+	fmt.Println("4. Выход")
+	fmt.Scan(&variant)
+	return variant
+}
+
+func printBookmarks(bookmarks bookmarkMap) {
+	if len(bookmarks) == 0 {
+		fmt.Println("Пока нет закладок")
+	}
+	for key, value := range bookmarks {
+		fmt.Println(key, ": ", value)
+	}
+}
+
+func addBookmark(bookmarks bookmarkMap) bookmarkMap {
+	var newBookmarkKey string
+	var newBookmarkValue string
+	fmt.Print("Введите название: ")
+	fmt.Scan(&newBookmarkKey)
+	fmt.Print("Введите адрес: ")
+	fmt.Scan(&newBookmarkValue)
+	bookmarks[newBookmarkKey] = newBookmarkValue
+	return bookmarks
+}
+
+func deleteBookmark(bookmarks bookmarkMap) bookmarkMap {
+
+	var bookmarkToDelete string
+	fmt.Print("Введите название: ")
+	fmt.Scan(&bookmarkToDelete)
+	delete(bookmarks, bookmarkToDelete)
+	return bookmarks
+}

go-demo-3/maps/main.go

@@ -0,0 +1,16 @@
+package maps
+
+import "fmt"
+
+func main() {
+	m := map[string]string{
+		"PurpleSchool": "https://purpleschool.ru",
+	}
+	m["Google"] = "https://google.com"
+	m["Gmail"] = "https://gmail.com"
+	fmt.Println(m)
+	delete(m, "Gmail")
+	for _, v := range m {
+		fmt.Println(v)
+	}
+}