diff --git a/LMS.Repository/Software/ModifySoftwareControlValidityModel.cs b/LMS.Repository/Software/ModifySoftwareControlValidityModel.cs
index 596d9cd..4e2c08f 100644
--- a/LMS.Repository/Software/ModifySoftwareControlValidityModel.cs
+++ b/LMS.Repository/Software/ModifySoftwareControlValidityModel.cs
@@ -7,5 +7,7 @@ namespace LMS.Repository.Software
         public SoftwareControlEnum.SoftwareControlValidityEnum? ExpirationTime { get; set; }
 
         public bool? IsForever { get; set; }
+
+        public bool? IsTry { get; set; }
     }
 }
diff --git a/LMS.Tools/Extensions/ConvertExtension.cs b/LMS.Tools/Extensions/ConvertExtension.cs
index cce56c3..b9fb380 100644
--- a/LMS.Tools/Extensions/ConvertExtension.cs
+++ b/LMS.Tools/Extensions/ConvertExtension.cs
@@ -40,5 +40,22 @@
 
             return 0; // 默认返回0
         }
+
+        /// <summary>
+        /// 将字符串转换为int，默认或者是转换错误返回0
+        /// </summary>
+        /// <param name="input"></param>
+        /// <returns></returns>
+        public static int ConvertStringToIntOrDefault(string input)
+        {
+            if (int.TryParse(input, out int result))
+            {
+                return result;
+            }
+            else
+            {
+                return 0;
+            }
+        }
     }
 }
diff --git a/LMS.service/Controllers/SoftWareController.cs b/LMS.service/Controllers/SoftWareController.cs
index df6c314..b24da28 100644
--- a/LMS.service/Controllers/SoftWareController.cs
+++ b/LMS.service/Controllers/SoftWareController.cs
@@ -1,16 +1,10 @@
-using LMS.Repository.DB;
-using LMS.Repository.DTO;
+using LMS.Repository.DTO;
 using LMS.Repository.DTO.Software;
-using LMS.Repository.Models.User;
 using LMS.Repository.Software;
-using LMS.Repository.User;
 using LMS.service.Service.SoftwareService;
-using LMS.service.Service.UserService;
 using LMS.Tools.Extensions;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Mvc;
-using Microsoft.AspNetCore.Mvc.RazorPages;
-using Microsoft.IdentityModel.Tokens;
 using System.ComponentModel.DataAnnotations;
 using System.IdentityModel.Tokens.Jwt;
 using static LMS.Common.Enums.ResponseCodeEnum;
@@ -55,10 +49,6 @@ namespace LMS.service.Controllers
             {
                 return APIResponseModel<string>.CreateErrorResponseModel(ResponseCode.ParameterError);
             }
-            if (model.IsForever == null && model.ExpirationTime == null)
-            {
-                return APIResponseModel<string>.CreateErrorResponseModel(ResponseCode.ParameterError);
-            }
             long requestUserId = ConvertExtension.ObjectToLong(HttpContext.Items["UserId"] ?? 0);
             return await _softwareControlService.ModifySoftwareControlValidity(id, model, requestUserId);
         }
diff --git a/LMS.service/Service/SoftwareService/SoftwareControlService.cs b/LMS.service/Service/SoftwareService/SoftwareControlService.cs
index 6a3c90f..14f3781 100644
--- a/LMS.service/Service/SoftwareService/SoftwareControlService.cs
+++ b/LMS.service/Service/SoftwareService/SoftwareControlService.cs
@@ -117,18 +117,18 @@ namespace LMS.service.Service.SoftwareService
         {
             try
             {
+                if (model.IsForever == null && model.ExpirationTime == null && model.IsTry == null)
+                {
+                    return APIResponseModel<string>.CreateErrorResponseModel(ResponseCode.ParameterError);
+                }
+
+                model.IsTry ??= false;
+
+                // 检查用户是不是管理员
                 if (!await _userBasicDao.CheckUserIsAdminOrSuperAdmin(requestUserId))
                 {
                     return APIResponseModel<string>.CreateErrorResponseModel(ResponseCode.NotPermissionAction);
                 }
-                if (model.ExpirationTime != null)
-                {
-                    // 判断model传入的枚举值是不是再对应的enum中是有效的
-                    if (!Enum.IsDefined(typeof(SoftwareControlEnum.SoftwareControlValidityEnum), model.ExpirationTime))
-                    {
-                        return APIResponseModel<string>.CreateErrorResponseModel(ResponseCode.ParameterError, "传入的到期时间不在有效范围内");
-                    }
-                }
 
                 // 判断指定ID的软件控制项是否存在
                 SoftwareControl? softwareControl = await _dbContext.SoftwareControl.FirstOrDefaultAsync(x => x.Id == id);
@@ -137,6 +137,38 @@ namespace LMS.service.Service.SoftwareService
                     return APIResponseModel<string>.CreateErrorResponseModel(ResponseCode.IdDateNotFound);
                 }
 
+                // 试用
+                if (model.IsTry == true)
+                {
+                    // 设置更新时间和更新人
+                    softwareControl.UpdatedTime = BeijingTimeExtension.GetBeijingTime();
+                    softwareControl.UpdatedUserId = requestUserId;
+
+                    double trialDays = 1;
+                    Options? options = await _dbContext.Options.FirstOrDefaultAsync(x => x.Key == "LaiToolTrialDays");
+                    if (options != null)
+                    {
+                        double s = options.GetValueObject<double>();
+                        trialDays = s;
+                    }
+
+                    softwareControl.ExpirationTime = BeijingTimeExtension.GetBeijingTime().AddDays(trialDays);
+                    softwareControl.IsForever = false;
+                    //  更新数据库
+                    _dbContext.SoftwareControl.Update(softwareControl);
+                    await _dbContext.SaveChangesAsync();
+                    return APIResponseModel<string>.CreateSuccessResponseModel("修改成功");
+                }
+
+                if (model.ExpirationTime != null)
+                {
+                    // 判断model传入的枚举值是不是再对应的enum中是有效的
+                    if (!Enum.IsDefined(typeof(SoftwareControlEnum.SoftwareControlValidityEnum), model.ExpirationTime))
+                    {
+                        return APIResponseModel<string>.CreateErrorResponseModel(ResponseCode.ParameterError, "传入的到期时间不在有效范围内");
+                    }
+                }
+
                 // 判断当前数据是不是永久，如果是永久，就不能修改
                 if (softwareControl.IsForever && model.IsForever == true)
                 {