diff --git "a/\346\235\216\345\200\241\347\246\217/20240531-\346\216\245\345\217\243.md" "b/\346\235\216\345\200\241\347\246\217/20240531-\346\216\245\345\217\243.md"
new file mode 100644
index 0000000000000000000000000000000000000000..eaa99df878ad8616231ced04a05d41c67eb99682
--- /dev/null
+++ "b/\346\235\216\345\200\241\347\246\217/20240531-\346\216\245\345\217\243.md"
@@ -0,0 +1,54 @@
+## 接口
+- I实例名Repository
+    ```csharp
+        //通过Id获取所有作者的实现
+        实例对象? GetAuthorById(Guid guid);
+
+        //获取所有作者的方法
+        //函数三要素（函数名，形参，返回值）
+        ICollection<实例对象> GetAllAuthors();
+
+    ```
+- 实例名Repository
+    ```csharp
+        public class 实例名Repository:I实例名Repository
+        {
+           public ICollection<实例名> GetAllAuthors()
+           {
+                //从持久化数据库中获取
+                return 名Db.Instance.实例名.ToList();
+                //return [.. 名Db.Instance.实例名];
+           }
+           public 实例名? GetAuthorById(Guid guid)
+           {
+                return 名Db.Instance.实例名.SingleOrDefault(item=>item.Id==guid);
+           }
+        }
+    ```
+- 控制器中
+    ```csharp
+        private readonly I实例名Repository _实例名Repository;
+        public 实例名Controller(I实例名Repository 实例名Repository)
+        {
+            _实例名Repository=实例名Repository;
+        }
+        //获取get的函数中
+        [HttpGet("{id?}")]
+        public IActionResult Get(int id)
+        {
+            if(id.ToString==""){
+                return Ok(_实例名Repository.GetAllAuthors());
+            }else{
+                return Ok(_实例名Repository.GetAuthorById(id));
+            }
+        }
+    ```
+- Startup
+    ```csharp
+        public void ConfigureServices(IServiceCollection services)
+        {
+            services.AddControllers();
+            //新加
+            services.AddScoped<I实例名Repository,实例名Repository>();
+        }
+    ```
\ No newline at end of file
diff --git "a/\346\235\216\345\200\241\347\246\217/20240603--\351\241\271\347\233\256.md" "b/\346\235\216\345\200\241\347\246\217/20240603--\351\241\271\347\233\256.md"
new file mode 100644
index 0000000000000000000000000000000000000000..61c62bb5831fa7d792593e93519050dc544fa4a8
--- /dev/null
+++ "b/\346\235\216\345\200\241\347\246\217/20240603--\351\241\271\347\233\256.md"
@@ -0,0 +1,30 @@
+```csharp
+public class ProductEditDto
+{
+    public string Name { get; set; }
+    public decimal Price { get; set; }
+}
+```
+
+然后，在控制器中使用DTO来接收和验证编辑请求：
+
+```csharp
+[HttpPut("{id}")]
+public async Task<IActionResult> UpdateProduct(int id, ProductEditDto productDto)
+{
+    var existingProduct = await _context.Products.FindAsync(id);
+
+    if (existingProduct == null)
+    {
+        return NotFound();
+    }
+
+    existingProduct.Name = productDto.Name;
+    existingProduct.Price = productDto.Price;
+
+    _context.Products.Update(existingProduct);
+    await _context.SaveChangesAsync();
+
+    return NoContent();
+}
+```
\ No newline at end of file
diff --git "a/\346\235\216\345\200\241\347\246\217/20240604--\351\241\271\347\233\2562.md" "b/\346\235\216\345\200\241\347\246\217/20240604--\351\241\271\347\233\2562.md"
new file mode 100644
index 0000000000000000000000000000000000000000..118dd2d0a0feaadb4d586f6836fadcb8c60685d7
--- /dev/null
+++ "b/\346\235\216\345\200\241\347\246\217/20240604--\351\241\271\347\233\2562.md"
@@ -0,0 +1,17 @@
+```csharp
+[HttpDelete("{id}")]
+public async Task<IActionResult> DeleteProduct(int id)
+{
+    var existingProduct = await _context.Products.FindAsync(id);
+
+    if (existingProduct == null)
+    {
+        return NotFound();
+    }
+
+    _context.Products.Remove(existingProduct);
+    await _context.SaveChangesAsync();
+
+    return NoContent();
+}
+```
\ No newline at end of file
diff --git "a/\346\235\216\345\200\241\347\246\217/20240606--\351\241\271\347\233\2563.md" "b/\346\235\216\345\200\241\347\246\217/20240606--\351\241\271\347\233\2563.md"
new file mode 100644
index 0000000000000000000000000000000000000000..e0b0959f916cc7108d3157ab79a41ec343620d13
--- /dev/null
+++ "b/\346\235\216\345\200\241\347\246\217/20240606--\351\241\271\347\233\2563.md"
@@ -0,0 +1,38 @@
+```bash
+Install-Package Microsoft.EntityFrameworkCore
+Install-Package Microsoft.EntityFrameworkCore.Design
+```
+
+
+```csharp
+public class Product
+{
+    public int Id { get; set; }
+    public string Name { get; set; }
+    public decimal Price { get; set; }
+}
+```
+
+
+```csharp
+public class AppDbContext : DbContext
+{
+    public DbSet<Product> Products { get; set; }
+
+    protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
+    {
+        optionsBuilder.UseSqlServer("YourConnectionString");
+    }
+}
+```
+
+
+
+```csharp
+using (var context = new AppDbContext())
+{
+    var product = new Product { Name = "Sample Product", Price = 10.99 };
+    context.Products.Add(product);
+    context.SaveChanges();
+}
+```
diff --git "a/\346\235\216\345\200\241\347\246\217/20240607--\351\241\271\347\233\2564.md" "b/\346\235\216\345\200\241\347\246\217/20240607--\351\241\271\347\233\2564.md"
new file mode 100644
index 0000000000000000000000000000000000000000..9b0f63156db5b2abef75b2e9fe2c8328c4726aef
--- /dev/null
+++ "b/\346\235\216\345\200\241\347\246\217/20240607--\351\241\271\347\233\2564.md"
@@ -0,0 +1,28 @@
+```csharp
+// 定义数据模型类
+public class Product
+{
+    public int Id { get; set; }
+    public string Name { get; set; }
+    public decimal Price { get; set; }
+}
+
+// 创建DbContext
+public class AppDbContext : DbContext
+{
+    public DbSet<Product> Products { get; set; }
+
+    protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
+    {
+        optionsBuilder.UseSqlServer("YourConnectionString");
+    }
+}
+
+// 使用DbContext进行数据库操作
+using (var context = new AppDbContext())
+{
+    var product = new Product { Name = "Sample Product", Price = 10.99 };
+    context.Products.Add(product);
+    context.SaveChanges();
+}
+```
\ No newline at end of file