How to find text in .dat file by c++

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Hi! I have a .dat file like that:

C++

id product price
1 nokia 200
2 samsung 150
3 iphone 300
...
n .....  ..

How to find product and price when I select id by c++

Please give me a tip! thanks!

Posted 5-Mar-13 22:28pm

david red

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Richard MacCutchan · Answer 1 · 2013-03-05T23:16:00

Solution 1

Read each line of text and use one of the tokenizer functions, such as strtok[^], to split each string.

Posted 5-Mar-13 23:16pm

Richard MacCutchan

sid2881986 · Answer 2 · 2013-03-06T01:16:00

Solution 3

XML

ref this
<a href="http://www.cplusplus.com/reference/cstring/strtok/">http://www.cplusplus.com/reference/cstring/strtok/</a>[<a href="http://www.cplusplus.com/reference/cstring/strtok/" target="_blank" title="New Window">^</a>]

Posted 6-Mar-13 1:16am

sid2881986

Ray_F1 · Answer 3 · 2013-03-07T04:30:00

Solution 4

Read the each line and put it in a map:

the key is id column, the value is the pair<string,int>.

then, according the id to query the value.

Posted 7-Mar-13 4:30am

Ray_F1

Updated 7-Mar-13 4:34am

v2

Eugen Podsypalnikov · Answer 4 · 2013-03-07T04:46:00

Solution 5

Begin here...[^] :)

Posted 7-Mar-13 4:46am

Eugen Podsypalnikov

david red · Answer 5 · 2013-03-05T23:24:00

Solution 2

can you tell me detail or example, thanks

Posted 5-Mar-13 23:24pm

david red