build

chapter_sorting/selection_sort.md

@@ -152,7 +152,21 @@ comments: true
 === "C#"
 
     ```csharp title="selection_sort.cs"
-    [class]{selection_sort}-[func]{selectionSort}
+    /* 选择排序 */
+    void selectionSort(int[] nums) {
+        int n = nums.Length;
+        // 外循环：未排序区间为 [i, n-1]
+        for (int i = 0; i < n - 1; i++) {
+            // 内循环：找到未排序区间内的最小元素
+            int k = i;
+            for (int j = i + 1; j < n; j++) {
+                if (nums[j] < nums[k])
+                    k = j; // 记录最小元素的索引
+            }
+            // 将该最小元素与未排序区间的首个元素交换
+            (nums[k], nums[i]) = (nums[i], nums[k]);
+        }
+    }
     ```
 
 === "Swift"