update

design_pattern/singleton/static_local_singleton.cpp

@@ -0,0 +1,22 @@
+//
+// Created by light on 20-2-7.
+//
+
+#include <iostream>
+
+using namespace std;
+
+class singleton {
+private:
+    static singleton *p;
+    singleton() {}
+public:
+    singleton *instance();
+};
+
+singleton *singleton::instance() {
+    static singleton p;
+    return &p;
+}
+
+