do not have 同have no 既分別?

The difference between " do not have " & " have no " :
As a matter of fact (事實上), there is no difference in meaning.
Only a different description (描述) herein (此中).
Examples:
1. I do not have any money in my purse (錢包) all the while (時常).
2. I have no money in my wallet (錢包) all the time (時常).
3. I have not even a penny (便士-英磅的零錢) in my pocket (口袋) so often (時常).
[意思係搵個仙刮沙都無,一文不名。]
圖片參考：http://hk.yimg.com/i/icon/16/20.gif

See!
圖片參考：http://hk.yimg.com/i/icon/16/3.gif
There are various (多樣的) words, terms, phrases & ways when writing English.
What a beautiful language!
圖片參考：http://hk.yimg.com/i/icon/16/11.gif

Do not have和have not／have no都是解作“沒有”（沒擁有）
現在我將牛津【實用英語語法】關於have的用法的一段簡述：
have這隻字有很多意思
若have表示”擁有”時，其否定式就可以用：don't have或have not，而疑問句可用Do X haveYY....？或Have X YY…？
若have意指”吃”，”舉行”，”經歷”，”享受”，”體驗”等等其他的意思時，其否定式，就只可說：don't have而疑問句就只可Do ｘ have YY?
如：I didn't have a very good journey.
以下是【A University Grammer in English】”In the stative sense of possession, have is often(especially in BrE) constructed as an auxiliary. AmE prefers the do-construction:
e.g I haven't(don’t have) any books.
In dynamic senses(receive, take, experience, etc), lexical have in both AmE and BrE normally has the do-construction：I did'nt have a good time.
There is also the informal ”have got”, where ”have” is constructed as an auxiliary, which is frequently preferred(especially in BrE) as an alternative to have. It is particularly common in negative and interrogative sentences.
As a further alternative for expressing negation, we have the negative determiner no:
I haven't got any book／I have no books
有人說：”在「have」和名詞之間夾有其他的詞時才可用「hasn't / haven't」: 如I have not any money之間有any才可以用have not”，我不大認同，因為我在牛津【Advanced Learner's Dictionary】（第六版）裏看到這樣的例子：”Sorry, I haven't a clue”（對不起，我一無所知），若你所說”ａ”都是，那麼我沒有可說。
還有其他例子，如：No, I have not anything to drink，我們可以看到anything與have not之間也並沒有其他詞語。而且，我參考了好幾本文法書，皆沒有提及。甚至連牛津字典第六版，針對專講have在否定句中，也只是提出，do not have，與have not只是have not是在英國英語用於formal的書寫（當have為擁有，並否定句時）用。

do not have 當然唔同 have no
do not have 即係 "不會有..."
;have no 即係"沒有..."
e.g. Trevor has not bought the sweets so he does not have any sweets at this moment.
=Trevor 沒有買糖,所以他在這刻不會有糖, 。
e.g. Isabel has eaten all the sweets so Trevor has no sweets at this moment.
=Isabel 食哂所有糖, 所以Trevor在這刻沒有糖.