Regular Expression Regular Expression - 1 (C #)

The cause is because of a post, asked a question, the post is like:

Originally posted by

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I want to make a program, but I learned CompSci for a long time. I would like to ask you.

There are two TXT files, a Source.txt (there are a lot of data), a name called target.txt (blank)

I want to extract some of the data in Source.txt (slightly modified) and write it into target.txt.

for example:

Sourse.txt data:

2OI) 4 @ ## (

"DATA: 001% ABC"> DSI-23) (* 32 ## (

"DATA: DCE% XY3" # (* EOIJ2308ELD

The data that wants to extract is orange.

DATA: 001% ABC

After all of the extracted, I also want to change% to *, then add a comma after each data ","

Last Target.txt should be like this:

Data: 001 * ABC,

Data: DCE * XYZ

What should I do? I really forgotten in Java. Ask for advice ~~

If you pay for me, you can pay more.

I have also facing similar problems before, I always solve the approach by the procedure, and now the problem is coming, so I calm down to think about it. With the basis of the primary compilation principle, and after the limited state of the automaton, it has been very clear that this kind of text processing should be handed over to Regular Expression (regular expression), but it is difficult to understand because of the regular expression Therefore, there is not good to think.

So I plan to borrow this opportunity to be familiar with the regular expression. The results found that the program was so good:

Using system

;

Using system

.

IO

;

Using system

.

TEXT

;

Using system

.

TEXT

.

RegularExpressions

;

Namespace Regexpression

{

///