readfile | 易学教程

How is the logic behind storing program setting in text file like 'config.cfg'?

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问题 Often I see some software and specially games that store setting in a text file. I want to have same thing in my C# WinForms application too (I know it is possible to do with application settings for both user and software side) Since I think it is easier for end user to deal with it. So what I need to know is how these settings files are being read and for example set the fields of a class. Imagine I have a class that has the following fields: private double vOffset = 0; private bool Refresh

Reading a file one char at a time

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问题 I have two .c files: one contains the main and the other contains all of my functions. In my main I have a part where I want to read a char at a time the loop looks like this: while(ch = ReadFile(fp)) != EOF) { // Code } where ch is an integer ( int ch; ) and fp is a file pointer ( FILE* fp; ). And (different .c file ---): int ReadFile(FILE* fp) { // Some code return n; // The next char } Does anyone know how I can read one char at a time from the main this way, using this method? 回答1: Update

How to read docx file content in java api using poi jar

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问题 I have done reading doc file now i'm trying to read docx file content. when i searched for sample code i found many, nothing worked. check the code for reference... import java.io.*; import org.apache.poi.xwpf.usermodel.XWPFDocument; import org.apache.poi.xwpf.extractor.XWPFWordExtractor; import com.itextpdf.text.pdf.PdfWriter; import com.itextpdf.text.Document; import com.itextpdf.text.Paragraph; public class createPdfForDocx { public static void main(String[] args) { InputStream fs = null;

Error with ReadFile and Overlapped

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I have a problem with ReadFile and overlapped. first I use ReadFile with overlapped with 0 ZeroMemory(&overlapped ,sizeof(OVERLAPPED)); hDevice = CreateFileW(zwpath, GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL | FILE_FLAG_OVERLAPPED, NULL); if(hDevice != INVALID_HANDLE_VALUE){ ret = ReadFile(hDevice, buff, 1024, &numerobyte, &overlapped); } with a for(), I can see the bytes using a printf() for (int n=0; n<sizeof(buff); n++) { printf("0x%02X ", buff[n]); } and now I have one variant with a large number crbig = 322122547 d1 =

Skipping Blank lines in read file python

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问题 Im working on a very long project, i have everything done with it, but in the file he wants us to read at the bottom there are empty spaces, legit just blank spaces that we aren't allowed to delete, to work on the project i deleted them because i have no idea how to get around it, so my current open/read looks like this file = open("C:\\Users\\bh1337\\Documents\\2015HomicideLog_FINAL.txt" , "r") lines=file.readlines()[1:] file.close() What do i need to add to this to ignore blank lines? or to

How to read line by line by using FileReader

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问题 Thank you for your attention. I have created a program which I'm using a Login form and Register form. Once users register their email and their password will be saved it into submit.txt . Then they will turn back to login form and enter their email and password which are saved into submit.txt . In my code, I'm using write file for Register form, and Read file for Login Form. But, it doesn't work. I know my problem in the code used for Read File. May you help me to realize that?. Thank you

Read two textfile line by line simultaneously -java

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问题 I have 2 textfiles in two different languages and they are aligned line by line. I.e. the first line in the textfile1 should be equals to the first line in textfile2, and so on and so forth. Is there a way to read both file line-by-line simultaneously? Below is a sample of how the files should look like, imagine the number of lines per file is around 1,000,000. textfile1: This is a the first line in English This is a the 2nd line in English This is a the third line in English textfile2: C'est

PHP文件处理

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PHP的函数支持创建，读取，上传以及编辑文件操作。常见文件操作错误有： 1.编辑错误的文件 2.被垃圾数据填满硬盘 3.意外删除文件内容文件读取： readfile()函数：该函数读取文件，并把它写入输出缓冲。假设有一个名为webdictionary.txt的文件，放在服务器上，如下： AJAX = Asynchronous JavaScript and XML CSS = Cascading Style Sheets HTML = Hyper Text Markup Language PHP = PHP Hypertext Preprocessor SQL = Structured Query Language SVG = Scalable Vector Graphics XML = EXtensible Markup Language 读取该文件并写入输出流的代码readfile.php如下，若读取成功则函数返回字节数： <html> <head> <meta charset="utf-8"> </head> <body> <?php print("<pre>"); echo readfile("webdictionary.txt"); print("</pre>"); ?> </body> </html> 如下，其中print("<pre>")与print("</pre>"

Force download mp4 files

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I want to force the user tho download a youtube video. For example this url. I download the video and I can play the original video, but even the length/size of video is the same I cant play it when is force_downloaded. function force_download($file,$video_url) { $video_data = file_get_contents($video_url); file_put_contents($file, $video_data); if(isset($file) && file_exists($file)) { header('Content-length: ' . filesize($file)); header('Content-type: application/octet-stream'); header('Content-Disposition: attachment; filename= "' . $file . '"'); readfile($file); } } force_download('youtube

what is the fastest way to get dimensions of a csv file in java

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My regular procedure when coming to the task on getting dimensions of a csv file as following: Get how many rows it has: I use a while loop to read every lines and count up through each successful read. The cons is that it takes time to read the whole file just to count how many rows it has. then get how many columns it has: I use String[] temp = lineOfText.split(","); and then take the size of temp. Is there any smarter method? Like: file1 = read.csv; xDimention = file1.xDimention; yDimention = file1.yDimention; Jeronimo Backes Your approach won't work with multi-line values (you'll get an