From 44e0ba65f025dcc449a2e20349be4edd6743964b Mon Sep 17 00:00:00 2001
From: hello <stacks@outlook.com>
Date: Tue, 18 Mar 2025 18:35:35 +0800
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---
 notes/helloshop/time-provider.md | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/notes/helloshop/time-provider.md b/notes/helloshop/time-provider.md
index 26c396b..67c9184 100644
--- a/notes/helloshop/time-provider.md
+++ b/notes/helloshop/time-provider.md
@@ -1,4 +1,4 @@
-# 使用 TimeProvider 服务
+# 使用 TimeProvider 类注入时间
 
 System.TimeProvider 是一种时间抽象，它以 DateTimeOffset 类型的形式提供时间点。 通过使用 TimeProvider，可确保代码可测试且可预测。 TimeProvider 已在 .NET 8 中引入。
 
@@ -22,6 +22,7 @@ public class CustomTimeProvider: TimeProvider
 
 ```csharp
 builder.Services.AddSingleton(TimeProvider.System);
+builder.Services.AddSingleton<TimeProvider, CustomTimeProvider>();
 ```
 
 ```csharp