校对了数据，上海的没啥问题，深圳的还不行

protocol/types.go

@@ -0,0 +1,37 @@
+package protocol
+
+type Exchange uint8
+
+func (this Exchange) Uint8() uint8 { return uint8(this) }
+
+func (this Exchange) String() string {
+	switch this {
+	case ExchangeSH:
+		return "sh"
+	case ExchangeSZ:
+		return "sz"
+	case ExchangeBJ:
+		return "bj"
+	default:
+		return "unknown"
+	}
+}
+
+func (this Exchange) Name() string {
+	switch this {
+	case ExchangeSH:
+		return "上海"
+	case ExchangeSZ:
+		return "深圳"
+	case ExchangeBJ:
+		return "北京"
+	default:
+		return "未知"
+	}
+}
+
+const (
+	ExchangeSH Exchange = iota //上海交易所
+	ExchangeSZ                 //深圳交易所
+	ExchangeBJ                 //北京交易所
+)