diff --git "a/18\350\275\257\344\273\266\345\267\245\347\250\2131\347\217\255180021104224\346\236\227\344\277\212\351\224\213.txt.cpp" "b/18\350\275\257\344\273\266\345\267\245\347\250\2131\347\217\255180021104224\346\236\227\344\277\212\351\224\213.txt.cpp"
new file mode 100644
index 0000000..6362110
--- /dev/null
+++ "b/18\350\275\257\344\273\266\345\267\245\347\250\2131\347\217\255180021104224\346\236\227\344\277\212\351\224\213.txt.cpp"
@@ -0,0 +1,53 @@
+ 
+	#include <iostream> 
+	#include<stdlib.h>      
+	using namespace std;   
+	  
+	template<class Type>  
+	int BinarySearch(Type a[],const Type& x,int n);  
+	  
+	int main()  
+	{  
+	    int x = 10;  
+	    int a[20];  
+	    for(int i=0; i<20; i++)  
+	    {  
+	        a[i] = i + 1;  
+	    }  
+	    for(int i=0; i<20; i++)  
+	    {  
+	        cout<<a[i]<<" ";  
+	    } 
+	    cout<<endl;
+	    
+	    cout<<"erfen"<<x<<" xiabiaoshi£º ";  
+	    cout<<BinarySearch(a,x,20)<<endl;  
+	    system("pause");
+		return 0;  
+	}  
+	  
+	template<class Type>  
+	int BinarySearch(Type a[],const Type& x,int n)  
+	{  
+	    int left = 0;  
+	    int right = n-1;  
+	    while(left<=right)  
+	    {  
+	        int mid = (left + right)/2;  
+	        if(x == a[mid])  
+	        {  
+	            return mid;  
+	        }  
+	        if(x>a[mid])  
+            {  
+	            left = mid + 1;  
+	        }  
+            else  
+	        {  
+	            right = mid - 1;  
+	        }  
+       }  
+	  
+    return -1;  
+   }  
+