diff --git "a/\351\230\231\347\202\234\345\273\267/\350\257\276\345\240\202\347\254\224\350\256\260/20241209.md" "b/\351\230\231\347\202\234\345\273\267/\350\257\276\345\240\202\347\254\224\350\256\260/20241209.md"
new file mode 100644
index 0000000000000000000000000000000000000000..ac8513d594bfabc5eadb47327aac81ebc8aa262d
--- /dev/null
+++ "b/\351\230\231\347\202\234\345\273\267/\350\257\276\345\240\202\347\254\224\350\256\260/20241209.md"
@@ -0,0 +1,64 @@
+# js删除功能实现代码的js
+```
+<script>
+        const add = document.querySelector('.add')
+        const edit = document.querySelectorAll('.edit')
+        const search = document.querySelector('.search')
+        const stext = document.querySelector('.textare')
+        const de = document.querySelectorAll('.de')
+
+
+        for (let i = 0; i < de.length; i++) {
+            de[i].addEventListener('click', function (e) {
+                console.log(de[i])
+        let ta = confirm('确定删除吗');
+               
+                if (ta == true) {
+                    
+                    
+                    
+
+                }
+                else {
+
+                    e.preventDefault();
+
+                } 
+
+            })
+
+        }
+
+        add.addEventListener('click', function () {
+
+            window.location.href = "/blogs/Create"
+        })
+
+        for (let i = 0; i < edit.length; i++) {
+
+            edit[i].addEventListener('click', function () {
+                window.location.href = "/blogs/Edit"
+            })
+
+        }
+
+
+    </script>
+```
+
+# 链接数据库的控制台
+控制台名`BlogDbContext`
+```
+
+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=SK-20240829OFAU\\SQLEXPRESS;database=TestBlogData;uid=sa;pwd=123456;TrustServerCertificate=True;");
+}
+```
\ No newline at end of file
diff --git "a/\351\230\231\347\202\234\345\273\267/\350\257\276\345\240\202\347\254\224\350\256\260/20241212.md" "b/\351\230\231\347\202\234\345\273\267/\350\257\276\345\240\202\347\254\224\350\256\260/20241212.md"
new file mode 100644
index 0000000000000000000000000000000000000000..e27f1db71dfe32453a80aaadb9991f655429f648
--- /dev/null
+++ "b/\351\230\231\347\202\234\345\273\267/\350\257\276\345\240\202\347\254\224\350\256\260/20241212.md"
@@ -0,0 +1,28 @@
+检索元素的子集以生成新序列，而不修改各个元素。 然后，查询可能以各种方式对返回的序列进行排序或分组，如下面的示例所示（假定 scores 是 int[]）：
+```
+IEnumerable<int> highScoresQuery =
+    from score in scores
+    where score > 80
+    orderby score descending
+    select score;
+```
+下面的代码示例演示一个简单查询表达式，它具有一个数据源、一个筛选子句、一个排序子句并且不转换源元素。 该查询以 select 子句结尾。
+```
+// Data source.
+int[] scores = [90, 71, 82, 93, 75, 82];
+
+// Query Expression.
+IEnumerable<int> scoreQuery = //query variable
+    from score in scores //required
+    where score > 80 // optional
+    orderby score descending // optional
+    select score; //must end with select or group
+
+// Execute the query to produce the results
+foreach (var testScore in scoreQuery)
+{
+    Console.WriteLine(testScore);
+}
+
+// Output: 93 90 82 82
+```
\ No newline at end of file