diff --git a/money.cpp b/money.cpp
index d65b988..59a5963 100644
--- a/money.cpp
+++ b/money.cpp
@@ -37,5 +37,6 @@ int main()
     std::ifstream ifile{"money.txt"};
     ifile >> n;     // 从文件读入n
     std::cout << n; // 输出n
+    ifile.close();
     return 0;
 }
\ No newline at end of file