From a15303511da81bcdc96af870f274f2a855673bf7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E9=99=86=E6=BB=A2=E9=92=B0?=
 <14091774+well-yes@user.noreply.gitee.com>
Date: Sun, 15 Dec 2024 18:44:30 +0800
Subject: [PATCH] 111

---
 .../20241209.md"                              | 35 +++++++++++++++++++
 .../20241212.md"                              |  1 +
 2 files changed, 36 insertions(+)
 create mode 100644 "\351\231\206\346\273\242\351\222\260/20241209.md"
 create mode 100644 "\351\231\206\346\273\242\351\222\260/20241212.md"

diff --git "a/\351\231\206\346\273\242\351\222\260/20241209.md" "b/\351\231\206\346\273\242\351\222\260/20241209.md"
new file mode 100644
index 0000000..04fceae
--- /dev/null
+++ "b/\351\231\206\346\273\242\351\222\260/20241209.md"
@@ -0,0 +1,35 @@
+## 用EntityFrameworkCore的步骤
+1. 安装依赖包，命令：dotnet add package Microsoft.EntityFrameworkCore.SqlServer
+2. 定义数据库表模型
+```csharp
+namespace Blog.Models;
+
+public class Blogs
+{
+    public int Id { get; set; }
+    public string Title { get; set; } = null!;
+    public string Content { get; set; } = null!;
+    public string Author { get; set; } = null!;
+}
+```
+
+3. 定义数据库上下文
+```csharp
+using Microsoft.EntityFrameworkCore;
+
+namespace Blog.Models;
+
+public class BlogDbContext : DbContext
+{
+    public DbSet<Blogs> Blogs { get; set; } = null!;
+
+
+    // The following configures EF to create a Sqlite database file in the
+    // special "local" folder for your platform.
+    protected override void OnConfiguring(DbContextOptionsBuilder options)
+        => options.UseSqlServer($"Server=.\\SQLEXPRESS;database=Blog4;uid=sa;pwd=123456;TrustServerCertificate=True;");
+}
+```
+4. 生成迁移文件，命令：dotnet ef migrations add XXX (PS：可能需要安装如下依赖包：Microsoft.EntityFrameworkCore.Design)
+
+5. 将上一步生成的迁移文件，更新到数据库：dotnet ef database update（PS：需要保证连接字符串正确无误，包括用户名、密码等，数据库打开，并且允许远程连接）
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diff --git "a/\351\231\206\346\273\242\351\222\260/20241212.md" "b/\351\231\206\346\273\242\351\222\260/20241212.md"
new file mode 100644
index 0000000..a276245
--- /dev/null
+++ "b/\351\231\206\346\273\242\351\222\260/20241212.md"
@@ -0,0 +1 @@
+今天讲了练习
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-- 
Gitee