diff --git "a/\351\273\204\347\216\211\346\235\255/20240603_\351\241\271\347\233\2561.md" "b/\351\273\204\347\216\211\346\235\255/20240603_\351\241\271\347\233\2561.md"
new file mode 100644
index 0000000000000000000000000000000000000000..26276cf15d55378f6507fdd02ad9da6ba20e3270
--- /dev/null
+++ "b/\351\273\204\347\216\211\346\235\255/20240603_\351\241\271\347\233\2561.md"
@@ -0,0 +1,33 @@
+
+
+```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();
+}
+```
+
diff --git "a/\351\273\204\347\216\211\346\235\255/20240604_\351\241\271\347\233\2562.md" "b/\351\273\204\347\216\211\346\235\255/20240604_\351\241\271\347\233\2562.md"
new file mode 100644
index 0000000000000000000000000000000000000000..673b4dd61f7eabe2ef7967fdd545745969b390dc
--- /dev/null
+++ "b/\351\273\204\347\216\211\346\235\255/20240604_\351\241\271\347\233\2562.md"
@@ -0,0 +1,18 @@
+
+```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();
+}
+```
diff --git "a/\351\273\204\347\216\211\346\235\255/20240606_\351\241\271\347\233\2563 .md" "b/\351\273\204\347\216\211\346\235\255/20240606_\351\241\271\347\233\2563 .md"
new file mode 100644
index 0000000000000000000000000000000000000000..2bf45a860a22f9d855a109936cdec6c7485aed22
--- /dev/null
+++ "b/\351\273\204\347\216\211\346\235\255/20240606_\351\241\271\347\233\2563 .md"	
@@ -0,0 +1,40 @@
+
+```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/\351\273\204\347\216\211\346\235\255/20240607_\351\241\271\347\233\2564.md" "b/\351\273\204\347\216\211\346\235\255/20240607_\351\241\271\347\233\2564.md"
new file mode 100644
index 0000000000000000000000000000000000000000..b8383fa27445f174d3c504615e772b3b5b70a0ff
--- /dev/null
+++ "b/\351\273\204\347\216\211\346\235\255/20240607_\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();
+}
+```