C#基础关键字篇-fixed语句

 1 unsafe static void TestMethod()
 2 {
 3 
 4     // Assume that the following class exists.
 5     //class Point 
 6     //{ 
 7     //    public int x;
 8     //    public int y; 
 9     //}
10 
11     // Variable pt is a managed variable, subject to garbage collection.
12     Point pt = new Point();
13 
14     // Using fixed allows the address of pt members to be taken,
15     // and "pins" pt so that it is not relocated.
16 
17     fixed (int* p = &pt.x)
18     {
19         *p = 1;
20     }        
21 
22 }