test

.config/Code/User/History/-7e055f1a/qCX2.cpp

@@ -0,0 +1,22 @@
+#include <iostream>
+using namespace std;
+class A
+{
+public:
+    A(int ii = 0) : i(ii) {}
+    A(int ii, int ss) : i(ii + ss) {}
+    void show() { cout << "i = " << i << endl; }
+    ~A() { cout << "Out A" << i << endl; }
+    A magic(int ss){
+        this->i = ss * this->i;
+        return *this;
+    }
+
+private:
+    int i;
+};
+int main()
+{
+    A a(10, 5), s(10);
+    a = s.magic(20).magic(10);
+}