Calculate word count

gistfile1.m

NSString     *string     = @"中华人民共和国万岁 万岁 万万岁";
NSCountedSet *countedSet = [NSCountedSet new];

[string enumerateSubstringsInRange:NSMakeRange(0, [string length])
                          options:NSStringEnumerationByComposedCharacterSequences | NSStringEnumerationLocalized
                        usingBlock:^(NSString *substring, NSRange substringRange, NSRange enclosingRange, BOOL *stop){
                            _sumText++;
                            [countedSet addObject:substring];
                        }];

NSLog(@"%lu", _sumText);
NSLog(@"%@", countedSet);