C TXT import and export, how to export data to a Txt file in C

**Basically don't need to change, add two fileupload controls on the page, one is used to select the txt file, one is used to select the location to save, and then add an exported button, in the button event:

binaryreader reader = new binaryreader("Select the txt file path to include the file", ;

byte buffer = new byte[(int);

for (int i = 0;i < i++) reads the font file into a byte array.

buffer[i] = ;

for (int j = 0; j < j++)

0x" + buffer[i].tostring("x2") +" ");

Export the path + file name you want to save"The above method is based on the fact that you are building a web page, and if it is a CS structure, it can be adopted.

Upstairs approach.

Write into your outside txt with streamwriter, presumably streamwriter sw=new streamwriter("Path");;

Use streamwriter for many examples online.

Directly output the string to a file with the file name path suffix txt. If the read stream is a byte stream, it can be converted to a string and then output.

Change console output redirect:

File name", false, ;

use"c:\", contents);

or"c:\", contents);

You can save strings directly to a file.

Which volume is processed with LINQ syntax:

string txt1 = "c:\txt ", ;

string txt2 = "c:\txt ", ;Read the file and return an array.

var items1 = from item in txt1 select '

var items2= from item in txt2 select 'Each row is then separated by a space into an array.

var result = from item1 in items1 join item2 in items2 on item1[2] equals item2[1] select ("item2[0], item2[1], item1[1]);to"A x"Connect the two collections for matching criteria.

c:\txt ", result, ;Write to the file.

foreach (var item in result ){

Samples (lottery method, random number table method, selling slow start, such as) are often used in the population.

dt = the datatable you queried

string path = location of the exported file + file name.

I hope it helps, and if you have any questions, please ask or hi

Each row and column of the datatable is spelled into a string and then written...

Many netizens are enthusiastic to help you write**, and LZ still doesn't accept the score.

*text file contents.

a|b|c|d|d

Open the file object.

openfiledialog pfd = new openfiledialog();

Open the File dialog box.

Read the file. streamreader sr = new streamreader(;

Read the contents of the file.

string str = ;

Cut into arrays.

string strs = '|');

Read by line as an array of strings.

string lines = "c:\testdir\");

foreach (string line in lines)else;}

Databases have the function of importing flat data, and most databases are interface-based operations without C.

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