标签：ios
NSArray *array = @[@"foo",@"bar",@"baz"]; NSArray *capitals = [array valueForKey:@"capitalizedString"]; NSArray *capitalLengths = [array valueForKeyPath:@"capitalizedString.length"]; NSUInteger totalLength = [[array valueForKeyPath:@"@sum.length"] intValue];
标签：ios
原文地址：http://blog.csdn.net/rainlesvio/article/details/41022797
