From aae6d7220fcc1bb7e58ef310e4716948d84cb433 Mon Sep 17 00:00:00 2001
From: dtapps <li.gc@icloud.com>
Date: Tue, 19 Mar 2024 13:41:02 +0800
Subject: [PATCH] - update

---
 .gitignore  |  4 ++--
 README.md   |  4 ++--
 go.mod      |  2 +-
 gorandom.go | 12 ++++++++----
 version.go  |  2 +-
 5 files changed, 14 insertions(+), 10 deletions(-)

diff --git a/.gitignore b/.gitignore
index 4794692..c2fc790 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,6 +4,6 @@
 .idea
 .vscode
 *.log
-goinit.sh
-gomod.sh
+*_test.go
+go_mod.sh
 /vendor/
\ No newline at end of file
diff --git a/README.md b/README.md
index cdb34f5..caa0924 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,5 @@
 <h1>
-<a href="https://www.dtapp.net/">Golang Random</a>
+<a href="https://www.dtapp.net/">Golang</a>
 </h1>
 
 📦 Golang Random
@@ -13,5 +13,5 @@
 #### 安装
 
 ```go
-go get -v -u go.dtapp.net/gorandom
+go get -v -u go.dtapp.net/gorandom@v1.0.3
 ```
diff --git a/go.mod b/go.mod
index 2a5e8ef..3efd94b 100644
--- a/go.mod
+++ b/go.mod
@@ -1,3 +1,3 @@
 module go.dtapp.net/gorandom
 
-go 1.18
+go 1.22
diff --git a/gorandom.go b/gorandom.go
index d20176f..1ed0fce 100644
--- a/gorandom.go
+++ b/gorandom.go
@@ -1,7 +1,7 @@
 package gorandom
 
 import (
-	"math/rand"
+	"math/rand/v2"
 	"time"
 )
 
@@ -15,7 +15,11 @@ func random[T int | int64](n T, chars string) string {
 	if n <= 0 {
 		return ""
 	}
-	r := rand.New(rand.NewSource(time.Now().UnixNano()))
+
+	// 随机数生成器，加入时间戳保证每次生成的随机数不一样
+	seed := time.Now().UnixNano()                          // rand内部运算的随机数
+	r := rand.New(rand.NewPCG(uint64(seed), uint64(seed))) // rand计算得到的随机数
+
 	bytes := make([]byte, n, n)
 	l := len(chars)
 	var i T = 0
@@ -23,7 +27,7 @@ func random[T int | int64](n T, chars string) string {
 		if i >= n {
 			break
 		}
-		bytes[i] = chars[r.Intn(l)]
+		bytes[i] = chars[r.IntN(l)]
 		i++
 	}
 	return string(bytes)
@@ -54,7 +58,7 @@ func Range(min int64, max int64) int64 {
 	var number int64
 	for {
 		// 生成在范围 [min, max) 内的随机数
-		number = int64(rand.Intn(int(max)-int(min)) + int(min))
+		number = int64(rand.IntN(int(max)-int(min)) + int(min))
 
 		// 检查随机数是否大于 min 且小于 max
 		if number > min && number < max {
diff --git a/version.go b/version.go
index c8bf7c3..cadcf9f 100644
--- a/version.go
+++ b/version.go
@@ -1,3 +1,3 @@
 package gorandom
 
-const Version = "1.0.2"
+const Version = "1.0.3"