Cut the string into an array componentsSeparatedByString

Splits a string into an array.
-(Void) viewDidLoad

{

NSString * a = [[NSString alloc] initWithString: @ "winter melon, watermelon, dragon fruit, big head, puppy"];

NSArray * B = [a componentsSeparatedByString: @ ","];

NSString * a3 = [B objectAtIndex: 2];

NSLog (@ "\ n B's third stuff is: % @", a3 );

[A release];

}

 

18:45:12. 682 Q [8778: 207] B's third item is: dragon fruit

 

// Note: NSArray * B = [a componentsSeparatedByString: @ ","];

Because the array obtained by this method is not the init... method, do not write and Release B's memory,

[B release]; this sentence cannot be written !!! Otherwise, the memory is-1, and the program CRASH!