README.md

@@ -46,6 +46,7 @@ TinySTL
     * list：100%
 	* unordered_set：100%
 	* unique_ptr：100%
+	* shared_ptr：100%
 * STL Algorithms:  
     * fill：100% 
     * fill_n：100% 
@@ -103,6 +104,7 @@ TinySTL
   * directed_graph：100%
   * trie tree：100%
   * unique_ptr：100%
+  * shared_ptr：100%
 
 #TinySTL性能测试:
 ###测试环境：Windows 7 && VS2013 && release模式
@@ -530,4 +532,52 @@ TinySTL
 	}
 	std::cout << std::endl;
     
-![image](https://raw.githubusercontent.com/zouxiaohang/TinySTL/master/TinySTL/ScreenShots/trie_tree.png)  
+![image](https://raw.githubusercontent.com/zouxiaohang/TinySTL/master/TinySTL/ScreenShots/trie_tree.png)  
+
+
+
+####(17):shared_ptr
+
+    shared_ptr<int> sp1(new int(10));
+	assert(*(sp1.get()) == 10);
+			
+	shared_ptr<int> sp2(new int(1), default_delete<int>());
+	assert(sp2.use_count() == 1);
+
+	auto sp3(sp2);
+	assert(sp3.use_count() == 2);
+			
+	auto sp4 = sp2;
+	assert(sp4.use_count() == 3);
+
+	assert(sp2.get() == sp3.get() && sp2.get() == sp4.get());
+	assert(sp2 == sp3 && !(sp2 != sp4));
+
+	shared_ptr<string> sp5(new string("hello"));
+	assert(*sp5 == "hello");
+	sp5->append(" world");
+	assert(*sp5 == "hello world");
+
+	auto sp6 = make_shared<string>(10, '0');
+	assert(*sp6 == "0000000000");
+
+	shared_ptr<int> spp;
+	assert(spp == nullptr);
+	assert(!(spp != nullptr));
+
+
+
+####(18):unique_ptr
+
+    auto up = make_unique<string>(10, '0');
+	up->append("111");
+	assert(*up == "0000000000111");
+
+	up.release();
+	assert(up == nullptr);
+
+	up.reset(new string("hello"));
+	assert(*up == "hello");
+    
+ 
+