Objecttive-c Creating multithreading

There are two ways to create multithreading in Objecttive-c, one is Initwithtarget, and the other is detachnewthreadselector.

Here are two instances, creating a multithreaded instance that supports passing parameters.

Initwithtarget Way

  main.m//  initwithtarget//  Created by exchen on 5/8/15.//  Copyright (c) exchen. All rights reserved.//#import <Foundation/Foundation.h> @interface classa:nsobject-(void) Startthread: ( NSString *) str; @end @implementation classa-(void) Startthread: (NSString *) str{     sleep (3);        NSLog (str);       Exit (0);} @endint Main (int argc, const char * argv[]) {    @autoreleasepool {        //Insert code        here ... NSLog (@ "Hello, world!");    }        ClassA *a = [[ClassA alloc] init];    Nsthread *thread = [[Nsthread alloc] initwithtarget:a selector: @selector (startthread:) object:@ "Start"];    [Thread start];        Sleep (5);    return 0;}

Detachnewthreadselector Way

  main.m//  testthread////  Created by exchen on 5/8/15.//  Copyright (c) exchen. All rights reserved.//#import <Foundation/Foundation.h> @interface classa:nsobject-(void) Startthread: ( NSString *) str; @end @implementation classa-(void) Startthread: (NSString *) str{    NSLog (@ "%@", str);    Exit (0);} @endint Main (int argc, const char * argv[]) {    @autoreleasepool {        //Insert code        here ... NSLog (@ "Hello, world!");                ClassA *a = [[ClassA alloc] init];                [Nsthread detachnewthreadselector: @selector (startthread:) totarget:a withobject:@ "Start"];                Sleep (5);            }    return 0;}

Objecttive-c Creating multithreading