ios之NSThread开辟子线程方法

 
  
- ( void ) createThread1 {
NSTread * thread = [ NSTread alloc ] initWithTarget : self selector : @selector ( methodName : ) object : @"abc" ];
[ thread start ];
}
- ( void ) createThread2 {
//从主线程分离一个线程
[ NSTread detachNewThreadSelector : @selector ( methodName : ) toTagert : self withObject : @"abc" ];
}
- ( void ) createThread3 {
//开一个后台线程
self performSelectorInBackground : @selector ( methodName : ) withObject : @"abc" ];
}

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