多线程pthread

#import <pthread.h>

@interface ViewController ()

@end

@implementation ViewController

void * run(void *param){

for (int i=0; i<50000; i++) {

NSLog(@"run%@",[NSThread currentThread]);

}

return NULL;

}

- (IBAction)action:(id)sender {

pthread_t thread;

pthread_create(&thread, NULL, run, NULL);

}