C # multi-thread synchronization attribute operations

Using system; <br/> using system. collections. generic; <br/> using system. LINQ; <br/> using system. text; <br/> using system. threading; </P> <p> namespace multithreading <br/> {<br/> class thread sub-attributes <br/> {<br/> Private Static person per = new person (); </P> <p> Public static void main () <br/> {</P> <p> for (INT I = 0; I <10; I ++) <br/>{< br/> New thread (personthread ). start (); <br/>}</P> <p> thread. sleep (1000); </P> <p> console. writeline (Per. age); </P> <p> console. readline (); <br/>}</P> <p> Public static void personthread () <br/>{< br/> for (INT I = 0; I <5000; I ++) <br/>{< br/> // we have used lock in the age attribute, but even so, also, a race status problem may occur. <br/> // The reason is that in + =, get first and then set. The thread may still get the temporary value. <br/> // Therefore, add lock to the call, and then remove <br/> // lock (PER) <br/> // {<br/> // per. age + = 1; <br/>//} <br/> // Of course, we can also provide a secure thread increment method for person <br/> Per. incrementage (); <br/>}</P> <p> class person <br/>{< br/> private int _ age; <br/> private object sync = new object (); </P> <p> Public int age <br/> {<br/> Get <br/> {<br/> // lock (Sync) <br/> // {<br/> return this. _ age; <br/> //} <br/>}</P> <p> // set <br/> // {<br/> /// lock (sync) <br/> /// {<br/> // This. _ age = value; <br/>////} <br/>/}< br/>}</P> <p> Public int incrementage () <br/>{< br/> lock (Sync) <br/>{< br/> return ++ this. _ age; <br/>}< br/>