NSMutableArray *myColors; myColors = [NSMutableArray arrayWithObjects: @"Red", @"Green", @"Blue", @"Yellow", nil]; [myColors addObject: @"Indigo"]; [myColors addObject: @"Violet"]; //从NSArray添加对象 NSArray *myArray = @[@"Purple",@"Orange"]; [myColors addObjectsFromArray:myArray];