init: 1.0.0

pkg/tool/tradeNo.go

@@ -0,0 +1,24 @@
+package tool
+
+import (
+	"fmt"
+	"math/rand"
+	"strconv"
+	"strings"
+	"time"
+)
+
+func GenerateTradeNo() string {
+	now := time.Now()
+	formattedTime := now.Format("20060102150405") + strconv.Itoa(now.Nanosecond())
+	numeric := [10]byte{0, 1, 2, 3, 4, 5, 6, 7, 8, 9}
+	r := len(numeric)
+	source := rand.NewSource(time.Now().UnixNano())
+	random := rand.New(source)
+	var code strings.Builder
+	for i := 0; i < 4; i++ {
+		_, _ = fmt.Fprintf(&code, "%d", numeric[random.Intn(r)])
+	}
+	formattedTime += code.String()
+	return formattedTime
+}