標籤：
#import <Foundation/Foundation.h> - int main(int argc, const char * argv[])
- {
-
- @autoreleasepool {
-
- NSSet *set1 = [NSSet setWithObjects:@"a", @"b", @"c", @"d", nil];
- NSSet *set2 = [[NSSet alloc] initWithObjects:@"1", @"2", @"3", nil];
- NSArray *array = [NSArray arrayWithObjects:@"a", @"b", @"c", nil];
- NSSet *set3 = [NSSet setWithArray:array];
-
- NSLog(@"set1 :%@", set1);
- NSLog(@"set2 :%@", set2);
- NSLog(@"set3 :%@", set3);
-
- //擷取集合個數
- NSLog(@"set1 count :%d", set1.count);
-
- //以數組的形式擷取集合中的所有對象
- NSArray *allObj = [set2 allObjects];
- NSLog(@"allObj :%@", allObj);
-
- //擷取任意一對象
- NSLog(@"anyObj :%@", [set3 anyObject]);
-
- //是否包含某個對象
- NSLog(@"contains :%d", [set3 containsObject:@"obj2"]);
-
-
- //是否包含指定set中的對象
- NSLog(@"intersect obj :%d", [set1 intersectsSet:set3]);
-
- //是否完全符合
- NSLog(@"isEqual :%d", [set2 isEqualToSet:set3]);
-
- //是否是子集合
- NSLog(@"isSubSet :%d", [set3 isSubsetOfSet:set1]);
-
-
-
- NSSet *set4 = [NSSet setWithObjects:@"a", @"b", nil];
- NSArray *ary = [NSArray arrayWithObjects:@"1", @"2", @"3", @"4", nil];
- NSSet *set5 = [set4 setByAddingObjectsFromArray:ary];
- NSLog(@"addFromArray :%@", set5);
-
-
-
-
- NSMutableSet *mutableSet1 = [NSMutableSet setWithObjects:@"1", @"2", @"3", nil];
- NSMutableSet *mutableSet2 = [NSMutableSet setWithObjects:@"a", @"2", @"b", nil];
- NSMutableSet *mutableSet3 = [NSMutableSet setWithObjects:@"1", @"c", @"b", nil];
-
- //集合元素相減
- [mutableSet1 minusSet:mutableSet2];
- NSLog(@"minus :%@", mutableSet1);
-
- //只留下相等元素
- [mutableSet1 intersectSet:mutableSet3];
- NSLog(@"intersect :%@", mutableSet1);
-
- //合并集合
- [mutableSet2 unionSet:mutableSet3];
- NSLog(@"union :%@", mutableSet2);
-
- //刪除指定元素
- [mutableSet2 removeObject:@"a"];
- NSLog(@"removeObj :%@", mutableSet2);
-
-
- //刪除所有資料
- [mutableSet2 removeAllObjects];
- NSLog(@"removeAll :%@", mutableSet2);
-
- }
- return 0;
- }
Objective-C:NSSet和NSMutbaleSet的用法
