增加了获取股票数量的接口

example/GetStockCount/main.go

@@ -0,0 +1,19 @@
+package main
+
+import (
+	"github.com/injoyai/logs"
+	"github.com/injoyai/tdx"
+	"github.com/injoyai/tdx/protocol"
+)
+
+func main() {
+	c, err := tdx.Dial("124.71.187.122:7709")
+	logs.PanicErr(err)
+
+	resp, err := c.GetStockCount(protocol.ExchangeSH)
+	logs.PanicErr(err)
+
+	logs.Debug(resp.Count)
+
+	<-c.Done()
+}