diff --git a/utils/cipher.go b/utils/cipher.go
index bb8ca87..9fd3343 100644
--- a/utils/cipher.go
+++ b/utils/cipher.go
@@ -20,7 +20,7 @@ import (
 	"github.com/spf13/cast"
 )
 
-type HashClass struct{}
+type HashClass struct {}
 
 // Hash - 哈希加密
 var Hash *HashClass
@@ -124,13 +124,13 @@ func (this *AESRequest) Encrypt(text any) (result *AESResponse) {
 	// 每个块的大小
 	blockSize := block.BlockSize()
 	// 计算需要填充的长度
-	padding := blockSize - len([]byte(cast.ToString(text)))%blockSize
+	padding   := blockSize - len([]byte(cast.ToString(text)))%blockSize
 
 	// 填充
-	fill := append([]byte(cast.ToString(text)), bytes.Repeat([]byte{byte(padding)}, padding)...)
+	fill   := append([]byte(cast.ToString(text)), bytes.Repeat([]byte{byte(padding)}, padding)...)
 	encode := make([]byte, len(fill))
 
-	item := cipher.NewCBCEncrypter(block, []byte(this.Iv))
+	item   := cipher.NewCBCEncrypter(block, []byte(this.Iv))
 	item.CryptBlocks(encode, fill)
 
 	result.Byte = encode
@@ -184,7 +184,7 @@ func (this *AESRequest) Decrypt(text any) (result *AESResponse) {
 
 var RSA *RSAClass
 
-type RSAClass struct{}
+type RSAClass struct {}
 
 type RSAResponse struct {
 	// 私钥
@@ -344,4 +344,21 @@ func (this *RSAClass) PrivatePem(key string) (cert string) {
 	if err := pem.Encode(&PEM, block); err != nil { return "" }
 
 	return PEM.String()
+}
+
+type Md5Class struct {}
+
+// Md5 - MD5 加密
+var Md5 *Md5Class
+
+// Encrypt 计算字符串的 MD5 哈希值（返回十六进制字符串）
+func (this *Md5Class) Encrypt(value string) string {
+	// 创建 MD5 哈希对象
+	hash := md5.New()
+	// 写入数据（可以多次调用 Write 累加数据）
+	hash.Write([]byte(value))
+	// 计算哈希值，返回 []byte
+	hashBytes := hash.Sum(nil)
+	// 转为十六进制字符串
+	return hex.EncodeToString(hashBytes)
 }
\ No newline at end of file
diff --git a/utils/get.go b/utils/get.go
index 2d7f5de..3ecac03 100644
--- a/utils/get.go
+++ b/utils/get.go
@@ -7,6 +7,7 @@ import (
 	"regexp"
 	"strings"
 	"sync"
+	"time"
 	
 	"github.com/spf13/cast"
 	"github.com/spf13/viper"
@@ -155,4 +156,74 @@ func (this *GetClass) HostProtocol(url string) (isTLS bool, host string) {
 	
 	// 判断是否为TLS
 	return protocol == "https://", matches[2]
+}
+
+// TodayTimestamp - 获取今天开始和结束时间戳
+func (this *GetClass) TodayTimestamp() (start int64, end int64) {
+	
+	loc, _ := time.LoadLocation("Asia/Shanghai")
+	now    := time.Now().In(loc)
+	today  := time.Date(now.Year(), now.Month(), now.Day(), 0, 0, 0, 0, loc)
+	
+	return today.Unix(), today.Add(24 * time.Hour - time.Second).Unix()
+}
+
+// YesterdayTimestamp - 获取昨天开始和结束时间戳
+func (this *GetClass) YesterdayTimestamp() (start int64, end int64) {
+	
+	loc, _ := time.LoadLocation("Asia/Shanghai")
+	now    := time.Now().In(loc)
+	yesterday := time.Date(now.Year(), now.Month(), now.Day()-1, 0, 0, 0, 0, loc)
+	
+	return yesterday.Unix(), yesterday.Add(24 * time.Hour - time.Second).Unix()
+}
+
+// WeekTimestamp 获取本周开始和结束时间戳
+func (this *GetClass) WeekTimestamp() (start int64, end int64) {
+	
+	loc, _ := time.LoadLocation("Asia/Shanghai")
+	now    := time.Now().In(loc)
+	offset := int(time.Monday - now.Weekday())
+	
+	if offset > 0 { offset = -6 }
+	weekStart := time.Date(now.Year(), now.Month(), now.Day(), 0, 0, 0, 0, loc).AddDate(0, 0, offset)
+	weekEnd   := weekStart.AddDate(0, 0, 6).Add(23*time.Hour + 59*time.Minute + 59*time.Second)
+	
+	return weekStart.Unix(), weekEnd.Unix()
+}
+
+// LastWeekTimestamp 获取上周开始和结束时间戳
+func (this *GetClass) LastWeekTimestamp() (start int64, end int64) {
+	
+	loc, _ := time.LoadLocation("Asia/Shanghai")
+	now    := time.Now().In(loc)
+	offset := int(time.Monday - now.Weekday())
+	
+	if offset > 0 { offset = -6 }
+	weekStart := time.Date(now.Year(), now.Month(), now.Day(), 0, 0, 0, 0, loc).AddDate(0, 0, offset-7)
+	weekEnd   := weekStart.AddDate(0, 0, 6).Add(23 * time.Hour + 59 * time.Minute + 59 * time.Second)
+	
+	return weekStart.Unix(), weekEnd.Unix()
+}
+
+// MonthTimestamp 获取本月开始和结束时间戳
+func (this *GetClass) MonthTimestamp() (start int64, end int64) {
+	
+	loc, _ := time.LoadLocation("Asia/Shanghai")
+	now    := time.Now().In(loc)
+	monthStart := time.Date(now.Year(), now.Month(), 1, 0, 0, 0, 0, loc)
+	monthEnd   := monthStart.AddDate(0, 1, -1).Add(23 * time.Hour + 59 * time.Minute + 59 * time.Second)
+	
+	return monthStart.Unix(), monthEnd.Unix()
+}
+
+// LastMonthTimestamp 获取上月开始和结束时间戳
+func (this *GetClass) LastMonthTimestamp() (start int64, end int64) {
+	
+	loc, _ := time.LoadLocation("Asia/Shanghai")
+	now    := time.Now().In(loc)
+	monthStart := time.Date(now.Year(), now.Month()-1, 1, 0, 0, 0, 0, loc)
+	monthEnd   := monthStart.AddDate(0, 1, -1).Add(23 * time.Hour + 59 * time.Minute + 59 * time.Second)
+	
+	return monthStart.Unix(), monthEnd.Unix()
 }
\ No newline at end of file