From 3796d0ce331eed66c4e5e9328b92c06720fe6d76 Mon Sep 17 00:00:00 2001
From: yuqucheng <>
Date: Wed, 22 Jul 2026 14:25:30 +0800
Subject: [PATCH] =?UTF-8?q?fix(network):=20=E4=BF=AE=E5=A4=8D=E6=96=87?=
 =?UTF-8?q?=E4=BB=B6=E4=B8=8B=E8=BD=BD=E6=9C=AA=E6=A0=A1=E9=AA=8C=E6=95=B0?=
 =?UTF-8?q?=E6=8D=AE=E7=9A=84=E9=97=AE=E9=A2=98?=
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增加对下载数据的空值和长度校验，下载失败时打印错误日志并返回false，同时避免写入空数据
---
 Assets/Scripts/Network/NetworkCtrl.cs | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/Assets/Scripts/Network/NetworkCtrl.cs b/Assets/Scripts/Network/NetworkCtrl.cs
index 718a2ea..7800763 100644
--- a/Assets/Scripts/Network/NetworkCtrl.cs
+++ b/Assets/Scripts/Network/NetworkCtrl.cs
@@ -663,7 +663,14 @@ namespace Kill.Network
 
                     if (webRequest.result == UnityWebRequest.Result.Success)
                     {
-                        File.WriteAllBytes(savePath, webRequest.downloadHandler.data);
+                        byte[] data = webRequest.downloadHandler?.data;
+                        if (data == null || data.Length == 0)
+                        {
+                            Debug.LogError($"下载文件内容为空 {url} (尝试 {i + 1}/{maxRetries + 1})");
+                            return false;
+                        }
+
+                        File.WriteAllBytes(savePath, data);
 
                         string actualMd5 = CalculateMD5(savePath);
                         if (actualMd5.ToLower() == expectedMd5.ToLower())