From b343ad660a3dd8909713e3c9385f8e7ca0051690 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=AE=B7=E5=8B=87?= <shyinyong@outlook.com>
Date: Fri, 18 Aug 2023 11:38:43 +0800
Subject: [PATCH] Add random.go

---
 random.go | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 random.go

diff --git a/random.go b/random.go
new file mode 100644
index 0000000..5c1a44b
--- /dev/null
+++ b/random.go
@@ -0,0 +1,21 @@
+package q5
+
+import (
+	"math/rand"
+	"strings"
+)
+
+// RandomString generates a random string of length n
+const alphabet = "abcdefghijklmnopqrstuvwxyz"
+
+func RandomString(n int) string {
+	var sb strings.Builder
+	k := len(alphabet)
+
+	for i := 0; i < n; i++ {
+		c := alphabet[rand.Intn(k)]
+		sb.WriteByte(c)
+	}
+
+	return sb.String()
+}