update

codingStyleIdioms/1_classInitializers/initializer.cpp

@@ -0,0 +1,23 @@
+//
+// Created by light on 19-12-9.
+//
+
+#include <iostream>
+
+using namespace std;
+
+class A {
+public:
+    A(int a) : _a(a), _p(nullptr) {     // 初始化列表
+
+    }
+
+private:
+    int _a;
+    int *_p;
+};
+
+int main() {
+    A aa(10);
+    return 0;
+}