把CGPoint对象添加到数组

NSMutableArray *myPointArray = [[NSMutableArray alloc] init];         // add    CGPoint myPoint = CGPointMake(88.0f, 88.0f);    [myPointArray addObject:NSStringFromCGPoint(myPoint)];         // read    CGPoint retrievedPoint = CGPointFromString([myPointArray objectAtIndex:0]);    NSLog(@"retrievedPoint = %@", NSStringFromCGPoint(retrievedPoint));         [myPointArray release];