//NSMutableArray创建一个可变数组
//数组中的成员可以修改
//对象取决于定义对象本身的数据结构
//继承与不可变数组,不可变数组中的所有方法可变数组都可以使用
NSMutableArray *mulArray = [[NSMutableArray alloc] initWithObjects:@"one",@"two",@"three",@"four", nil];
NSLog(@"mulArray:%@",mulArray);
//增加对象,在数组的末尾
//(void)addObject:(id)anObject;
[mulArray addObject:@"Five"];
NSLog(@"newArray=%@",mulArray);
//在数组的指定位置添加对象
//(void)insertObject:(id)anObject atIndex:(NSUInteger)index;
[mulArray insertObject:@"qianfeng" atIndex:2];
//删除一个传递的对象
//(void)removeLastObject;
[mulArray removeObject:@"qianfeng"];
NSLog(@"newArray=%@",mulArray);
//传递一个位置删除指定的对象
//(void)removeObjectAtIndex:(NSUInteger)index;
[mulArray removeObjectAtIndex:2];
NSLog(@"newArray=%@",mulArray);
//修改可变数组
//(void)replaceObjectAtIndex:(NSUInteger)index withObject:(id)anObject;
[mulArray replaceObjectAtIndex:1 withObject:@"helloworld"];
NSLog(@"newArray=%@",mulArray);
//在可变数组末尾添加指定数组
//(void)addObjectsFromArray:(NSArray *)otherArray;
NSMutableArray *newArray = @[@"aha",@"hehe"];
[mulArray addObjectsFromArray:newArray];
NSLog(@"newArray=%@",mulArray)
//交换可变数组中指定位置的对象
//(void)exchangeObjectAtIndex:(NSUInteger)idx1 withObjectAtIndex:(NSUInteger)idx2;
[mulArray exchangeObjectAtIndex:1 withObjectAtIndex:3];
NSLog(@"newArray=%@",mulArray);
//删除所有的对象
//(void)removeAllObjects;
[mulArray removeAllObjects];
NSLog(@"newArray=%@",mulArray);
//删除给定范围内传递的对象
//(void)removeObject:(id)anObject inRange:(NSRange)range;
[mulArray removeObject:@"ehe" inRange:NSMakeRange(2, 1)];
NSLog(@"newArray=%@",mulArray);
//删除所有数组中传递的对象
//(void)removeObject:(id)anObject;
[mulArray removeObject:@"hehe"];
NSLog(@"newArray=%@",mulArray);
//删除包含传递数组内相同的元素
//(void)removeObjectsInArray:(NSArray *)otherArray;
NSMutableArray *mul2 = @[@"one",@"two"];
[mulArray removeObjectsInArray:mul2];
NSLog(@"newArray=%@",mulArray);
//(void)replaceObjectsInRange:(NSRange)range withObjectsFromArray:(NSArray *)otherArray range:(NSRange)otherRange;
NSMutableArray *mul3 = @[@"one",@"two"];
NSMutableArray *mul4 = @[@"one",@"two"];
[mul3 replaceObjectsInRange:NSMakeRange(1, 4) withObjectsFromArray:mul4 range:NSMakeRange(1,2)];
//通过另外一个数组来建立数组
//(void)setArray:(NSArray *)otherArray;
//(void)insertObjects:(NSArray *)objects atIndexes:(NSIndexSet *)indexes;
//1是在目的数组中要插入的位置,2是传递插入数据的长度
NSIndexSet *inSet = [NSIndexSet indexSetWithIndexesInRange:NSMakeRange(1, 2)];
[mul3 insertObjects:@[@"qian",@"feng"] atIndexes:inSet];
NSLog(@"mul3=%@",mul3);
//在创建mulArray的时候同时设定数组容纳对象的个数,容器大小可以被改变
NSMutableArray *mulArr = [NSMutableArray arrayWithCapacity:20];
//(void)removeObjectsAtIndexes:(NSIndexSet *)indexes;
//(void)replaceObjectsAtIndexes:(NSIndexSet *)indexes withObjects:(NSArray *)objects;ke