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);//Copyid 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 copyNSMutableArray *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 sortNSMutableArray *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);}