Update 2.selectionSort.md

增加c代码实现

Author: Ylisen

2.selectionSort.md

@@ -126,3 +126,25 @@ function selectionSort($arr)
     return $arr;
 }
 ```
+
+## 8. C 代码实现
+
+```c
+void SelectSort(int *data, int n)
+{
+    int i, j,t;
+    int min_index;
+    for(i = 0; i < n - 1; i ++){
+        min_index = i;
+        for( j = i + 1; j < n; j++){
+            if(data[j] < data[min_index])
+                min_index = j;
+        }
+        if (min_index != i){
+            t = data[i];
+            data[i] = data[min_index];
+            data[min_index] = t;
+        }
+    }
+}
+```