diff --git a/asg_form/Controllers/login.cs b/asg_form/Controllers/login.cs
index 2941f83..3711f13 100644
--- a/asg_form/Controllers/login.cs
+++ b/asg_form/Controllers/login.cs
@@ -218,6 +218,8 @@ namespace asg_form.Controllers
         }
         public readonly CaptchaService _captchaService = new CaptchaService();
 
+        public string captchaNow = "7777";
+
         /// <summary>
         /// 验证码生成
         /// </summary>
@@ -228,11 +230,17 @@ namespace asg_form.Controllers
             var captchaService = new CaptchaService();
             var (captchaImage, captchaCode) = captchaService.GenerateCaptcha();
 
-            // 这里可以将验证码存储在内存缓存或数据库中，以便后续验证
-            //StoreCaptcha(captchaCode); // 自定义存储逻辑
+            captchaNow=captchaCode;
 
             return Ok(new { captchaImage, captchaCode });
         }
+
+        // 验证用户输入的验证码
+        public bool ValidateCaptcha(string userInput)
+        {
+            return userInput.Equals(captchaNow, StringComparison.OrdinalIgnoreCase);
+        }
+
         /// <summary>
         /// 验证码注册
         /// </summary>
@@ -244,13 +252,14 @@ namespace asg_form.Controllers
 
             try
             {
-                 //验证验证码的逻辑
-                //bool isCaptchaValid = ValidateCaptcha(newuser.captcha); // 自定义验证逻辑
-                if (true)
+                bool isCaptchaValid = ValidateCaptcha(newuser.captcha);
+                if (captchaNow == "7777") return BadRequest(new { code = 400, message = "服务器正忙" });
+                if (!isCaptchaValid)
                 {
+                    captchaNow = "7777";
                     return BadRequest(new { code = 400, message = "验证码无效" });
                 }
-
+                captchaNow = "7777";
                 var maxId = await userManager.Users.MaxAsync(u => u.Id);
                 User? user = await userManager.FindByNameAsync(newuser.userName);
                 if (user == null)
diff --git a/asg_form/Controllers/prerfunctions/Draw.cs b/asg_form/Controllers/prerfunctions/Draw.cs
index fc05195..be14b8e 100644
--- a/asg_form/Controllers/prerfunctions/Draw.cs
+++ b/asg_form/Controllers/prerfunctions/Draw.cs
@@ -31,18 +31,17 @@ public class CaptchaService
         }
     }
 
-    // 验证用户输入的验证码
-    public bool ValidateCaptcha(string userInput)
-    {
-        return userInput.Equals(generatedCaptchaCode, StringComparison.OrdinalIgnoreCase);
-    }
+    
 
     // 生成随机字符
     private string GenerateRandomCode(int length)
     {
-        const string chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
+        const string chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZ012345689";
         Random random = new Random();
         return new string(Enumerable.Repeat(chars, length)
             .Select(s => s[random.Next(s.Length)]).ToArray());
     }
+
+    
+
 }