重构

core/utils/strrand.go

@@ -0,0 +1,25 @@
+package utils
+
+import (
+	"math/rand"
+	"time"
+)
+
+// 生成编号 SeqNo 0-9A-Z
+func SeqNo(length int) string {
+	items := []string{"0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "A", "B", "C", "D", "E", "F"}
+
+	// 创建基于时间的随机生成器
+	source := rand.NewSource(time.Now().UnixNano())
+	rng := rand.New(source)
+
+	// 生成32位长度的字符串值
+	result := ""
+	for i := 0; i < length; i++ {
+		randomIndex := rng.Intn(len(items))
+		randomItem := items[randomIndex]
+		result += randomItem
+	}
+
+	return result
+}