NSMutableArray *MutableArray = ［NSMutableArray alloc] arrayWithArray:array] //创建可变数组（从现有的数组上建立）

[MutableArray removeObjectAtIndex:1] //删除数组中指定位置的的元素

[MutableArray replaceObjectAtIndex:1 withObject:@"tihuan"] //在相应位置

for(NSString *string in MutableArray)

{ NSLog(@"string:%@",string);} //快速枚举数组中的值

 

 

/*******************************************************************************************

NSArray

*******************************************************************************************/

/*---------------------------创建数组 ------------------------------*/

//NSArray *array = [[NSArray alloc] initWithObjects:@"One",@"Two",@"Three",@"Four",nil];

/*-------------------------- 从一个数组拷贝数据到另一数组(可变数级)----------------------------*/

//arrayWithArray:

//NSArray *array1 = [[NSArray alloc] init];

NSMutableArray *MutableArray = [[NSMutableArray alloc] init];

NSArray *array = [NSArray arrayWithObjects:@"a",@"b",@"c",nil];

NSLog(@"array:%@",array);

MutableArray = [NSMutableArray arrayWithArray:array];

NSLog(@"MutableArray:%@",MutableArray);

array1 = [NSArray arrayWithArray:array];

NSLog(@"array1:%@",array1);

//Copy

//id obj;

NSMutableArray *newArray = [[NSMutableArray alloc] init];

NSArray *oldArray = [NSArray arrayWithObjects: @"a",@"b",@"c",@"d",@"e",@"f",@"g",@"h",nil];

NSLog(@"oldArray:%@",oldArray);

for(int i = 0; i < [oldArray count]; i++)

{

obj = [[oldArray objectAtIndex:i] copy];

[newArray addObject: obj];

}

//

NSLog(@"newArray:%@", newArray);

[newArray release];

//快速枚举

//NSMutableArray *newArray = [[NSMutableArray alloc] init];

NSArray *oldArray = [NSArray arrayWithObjects:@"a",@"b",@"c",@"d",@"e",@"f",@"g",@"h",nil];

NSLog(@"oldArray:%@",oldArray);

for(id obj in oldArray)

{

[newArray addObject: obj];

}

//

NSLog(@"newArray:%@", newArray);

[newArray release];

//Deep copy

//NSMutableArray *newArray = [[NSMutableArray alloc] init];

NSArray *oldArray = [NSArray arrayWithObjects:@"a",@"b",@"c",@"d",@"e",@"f",@"g",@"h",nil];

NSLog(@"oldArray:%@",oldArray);

newArray = (NSMutableArray*)CFPropertyListCreateDeepCopy(kCFAllocatorDefault, (CFPropertyListRef)oldArray, kCFPropertyListMutableContainers);

NSLog(@"newArray:%@", newArray);

[newArray release];

//Copy and sort

//NSMutableArray *newArray = [[NSMutableArray alloc] init];

NSArray *oldArray = [NSArray arrayWithObjects: @"b",@"a",@"e",@"d",@"c",@"f",@"h",@"g",nil];

NSLog(@"oldArray:%@",oldArray);

NSEnumerator *enumerator;

enumerator = [oldArray objectEnumerator];

id obj;

while(obj = [enumerator nextObject])

{

[newArray addObject: obj];

}

[newArray sortUsingSelector:@selector(compare:)];

NSLog(@"newArray:%@", newArray);

[newArray release];

 

/*--------------------------- 切分数组------------------------------*/

//从字符串分割到数组－ componentsSeparatedByString:

NSString *string = [[NSString alloc] initWithString:@"One,Two,Three,Four"];

NSLog(@"string:%@",string);

NSArray *array = [string componentsSeparatedByString:@","];

NSLog(@"array:%@",array);

[string release];

//从数组合并元素到字符串- componentsJoinedByString:

NSArray *array = [[NSArray alloc] initWithObjects:@"One",@"Two",@"Three",@"Four",nil];

NSString *string = [array componentsJoinedByString:@","];

NSLog(@"string:%@",string);

 

/*******************************************************************************************

NSMutableArray

*******************************************************************************************/

/*--------------- 给数组分配容量----------------*/

//NSArray *array;

array = [NSMutableArray arrayWithCapacity:20];

 

/*-------------- 在数组末尾添加对象----------------*/

//- (void) addObject: (id) anObject;

//NSMutableArray *array = [NSMutableArray arrayWithObjects: @"One",@"Two",@"Three",nil];

[array addObject:@"Four"];

NSLog(@"array:%@",array);

 

/*-------------- 删除数组中指定索引处对象----------------*/

//-(void) removeObjectAtIndex: (unsigned) index;

//NSMutableArray *array = [NSMutableArray arrayWithObjects:@"One",@"Two",@"Three",nil];

[array removeObjectAtIndex:1];

NSLog(@"array:%@",array);

 

/*------------- 数组枚举---------------*/

//- (NSEnumerator *)objectEnumerator;从前向后

//NSMutableArray *array = [NSMutableArray arrayWithObjects:@"One",@"Two",@"Three",nil];

NSEnumerator *enumerator;

enumerator = [array objectEnumerator];

id thingie;

while (thingie = [enumerator nextObject]) {

NSLog(@"thingie:%@",thingie);

}

//- (NSEnumerator *)reverseObjectEnumerator;从后向前

//NSMutableArray *array = [NSMutableArray arrayWithObjects:@"One",@"Two",@"Three",nil];

NSEnumerator *enumerator;

enumerator = [array reverseObjectEnumerator];

id object;

while (object = [enumerator nextObject]) {

NSLog(@"object:%@",object);

}

//快速枚举

//NSMutableArray *array = [NSMutableArray arrayWithObjects:@"One",@"Two",@"Three",nil];

for(NSString *string in array)

{

NSLog(@"string:%@",string);

}