diff --git "a/practical_exercises/10_day_practice/day8/\345\207\275\346\225\260\346\250\241\346\235\277/\344\276\2131.cpp" "b/practical_exercises/10_day_practice/day8/\345\207\275\346\225\260\346\250\241\346\235\277/\344\276\2131.cpp"
index 28cb4b34..8d192bc9 100644
--- "a/practical_exercises/10_day_practice/day8/\345\207\275\346\225\260\346\250\241\346\235\277/\344\276\2131.cpp"
+++ "b/practical_exercises/10_day_practice/day8/\345\207\275\346\225\260\346\250\241\346\235\277/\344\276\2131.cpp"
@@ -5,7 +5,7 @@ using namespace std;
 
 template <class T>
 //实现降序
-void sort(T &a, int n){
+void sort(T *a, int n){
     for (int i=0;i<n;i++){
         int p=i;
         for (int j=i;j<n;j++)