test02.cpp

chronolaw · chronolaw · commit 706416729d25 · 2020-01-17T17:24:41.000+08:00
diff --git a/section1/test02.cpp b/section1/test02.cpp
@@ -0,0 +1,28 @@
+// Copyright (c) 2020 by Chrono
+//
+// g++ test02.cpp -std=c++11 -o a.out;./a.out
+// g++ test02.cpp -std=c++14 -o a.out;./a.out
+//
+
+#include <iostream>
+
+
+void case1()
+{
+    using std::cout;
+    using std::endl;
+
+    cout << "using std::xxx" << endl;
+}
+
+void case2()
+{
+    using namespace std;
+
+    cout << "using namespace std" << endl;
+}
+int main()
+{
+    case1();
+    case2();
+}
