feat: 添加21点游戏

handler/blackjack/util/dict.go

@@ -0,0 +1,11 @@
+package util
+
+var Dict map[string]string
+
+func init() {
+	Dict := make(map[string]string)
+	Dict["Spade"] = "♠"
+	Dict["Heart"] = "♥"
+	Dict["Diamond"] = "♦"
+	Dict["Club"] = "♣"
+}

handler/blackjack/util/status.go

@@ -0,0 +1,10 @@
+package util
+
+type Status int
+
+const (
+	INITIALIZED Status = iota
+	WINNED Status = iota
+	FAILED Status = iota
+	DRAW Status = iota
+)