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, the PerfMonitor view provides you with time (the time when a specific method is used, including the time it was used by the caller) and exclusion time (the time used by a specific method, excluding the time used by the caller ). When the inclusion time is the same as the exclusion time, the work will be completed within the specific method. PerfMonitor also provides a CPU usage chart, which segments the CPU usage of a specific method over time. By hovering the cursor over the column title in t

Iv. Using statements In C #, the using statement is the closest to the "ideal" version:Private Static char [] readsource (string filename) { Fileinfo file = new fileinfo (filename ); Int length = (INT) file. length; Char [] source = new char [length]; Using (textreader reader = file. opentext ()) { Reader. Read (source, 0, length ); } Return source; } Reader will be properly disabled. To put it simply, the using statement has a large number of featur

3. finally?The release solution relies on your current language. In C ++, you can use the Destructor built on the stack. In Java, You can construct finally blocks. C # allows you to create custom structure types, but does not allow destructor in the structure (only because a C # destructor is actually a Finally method, which is called by the garbage collector. Structure, which is a value type and does not belong to the recycle range of the garbage collector ). Therefore, at the beginning, C # mu

type of program interface. At the same time, these Members describe the operations that can be performed by the type (or its instance). Their names are usually verbs, such as read, write, flush, append, insert, and remove. If a member of the type cannot complete its tasks, an exception should be thrown. An exception means that the type member cannot complete the function described by its name. The Program Interface we define usually has some implicit assumptions, such as system. io. file.

5. Processing in custom ModeThis is helpful when you consider what will happen if TextReader does not implement the IDisposable interface. This tutorial will show you how to implement Dispose in our own classes. One way is to use the Object Adapter mode. For example:Public sealed class AutoTextReader: IDisposable{Public AutoTextReader (TextReader target){// PreCondition (target! = Null );Adaptee = target;}Public TextReader{Get {return adaptee ;}}Public void Dispose (){Adaptee. Close ();}Private

method returns a string array. Each row is an array element. String[] STRs = file. readalllines (@"C: \ temp \ ascii.txt");//You can also specify the encoding method.String[] Strs2 = file. readalllines (@"C: \ temp \ ascii.txt", Encoding. ASCII ); When the text content is large, we should not read the text content once, but use stream to read the content .. Net encapsulates the streamreader class for us. There are many methods to initialize the streamreader class. Below I will list several

. Streamreader Sr2 = New Streamreader ( @ "C: \ temp \ utf-8.txt" , Encoding. utf8 );Filestream FS = New Filestream ( @ "C: \ temp \ utf-8.txt" , Filemode. Open, fileaccess. Read, fileshare. None );Streamreader sr3 = New Streamreader (FS );Streamreader sr4 =New Streamreader (FS, encoding. utf8 );Fileinfo myfile = New Fileinfo ( @ "C: \ temp \ utf-8.txt" ); // Create a UTF-8-encoded streamreader object in opentext Streamreader sr5 = myfile.

path of the source file, and destination specifies the path of the target file. Unlike the copy method, the source file is deleted after the move method is used. (8) open method function open (filename, filemode, fileaccess) as filestream this method returns the File Operation Channel object filestream. Filemode and fileaccess define a group of enumeration constants in the system. Io namespace to specify the file operation mode and operation permissions. Filemode. append: open the file by a

) SOURCE specifies the path to the source file, destination the path to the specified destination file, and the copy method is deleted after the Move method is used. (8) Open method function open (filename,filemode,fileaccess) as FileStream This method returns the file Action channel object FileStream. FileMode and FileAccess each define a set of enumerated constants in the System.IO namespace that specify the file operation mode and Operation permissions. Filemode.append Open the file as an

Before writing, I declare that I am very dish and lazy. Let's take a look at the cause. I want to pass a file to C # Through Java through the network. Because I am very lazy, I chose web service and only wanted to pass the simple type, so I remembered base64, so I decided to use base64 encoding to provide web services through Java, called by C. You must first compile the base64 code. If you do not compile it in Java, You must select C # encoding. You must save the code as a text file and use Jav

Use the iterator to traverse detailed file information. 1. the row copy code of the iteration file is as follows: publicstaticIEnumerablestringReadLines (stringfileName) {using (TextReaderreaderFile. OpenText (fileName) {stringline; if ( 1. iterate the row of the file The code is as follows: Public static IEnumerable ReadLines (string fileName) { Using (TextReader reader = File. OpenText (fileName

Asp tutorial. net c # File Read text instance Function The following code example reads the entire file and sends a notification when the end of the file is detected.[C #]Using system;Using system. io;Public class textfromfile {Private const string file_name = "myfile.txt ";Public static void main (string [] args ){If (! File. exists (file_name )){Console. writeline ("{0} does not exist! ", File_name );Return;}Streamreader sr = file. opentext (file_na

use the opentext method of the file class. the opentext methods takes in the path of the file to be opened as an argument. it opens the specified file and returns a streamreader object which can be used to read the contents of the file. Example Public class fileclass{Public static void main (){Readfromfile ("C: \ mytextfile.txt ");}Static void readfromfile (string filename){Streamreader SR;String S;Sr =

specific meanings, see the help of VBA.Example:Workbooks. Open "F:/test.xls"Open the test.xls file on the fdisk. 2. Open a text file You can use the open method to open text files, but we recommend that you use the opentext method. This method loads a text file and processes it as a workbook containing a single worksheet in a separate manner, and then puts the processed text file data in this worksheet. The complete syntax is as follows:Workbooks.

creating a class instance. Suppose you want to delete a file with these two classes, you can do this: '使用 File 类 File.Delete(fileName) '使用 FileInfo 类 Dim fInfo as FileInfo fInfo = new FileInfo(fileName) fInfo.Delete() Note that the Delete method of the file class takes only one parameter, the file to be deleted, and can be invoked without instantiating the file class. Looking at the FileInfo class again, its Delete method takes no arguments, because the file name is specified in the construc

Problem:There is a StreamReader in the project to read a file, using the OpenText () method.But unity suggests that the StreamReader class does not contain the OpenText () method, and that no extension methods are found.Reason:This is very strange, StreamReader is the System.IO under the class, inside is indeed there is this method, but why unity is prompted to find a method?After a variety of Baidu, eventu

The file object represents a file, and there are some very useful ways to verify the existence of a file and rename and delete a file. For example:Dim FL as FileFl=new File ("Foo.txt")if (fl. Exists) ' If the file ExistsFl. Delete ' Delete itEnd IfThe user can also use the file object to get a FileStream object and then read and write the file data by using the FileStream object:Dim TS as TextStreamDim FS as FileStreamTS=FL. OpenText ' Open a text fil

StreamReader (fS, Encoding. UTF8); // FileInfo provides the function of adding, deleting, modifying, and querying the price, and enabling FileInfo myFile = new FileInfo (@ "D: \ flie.txt "); // OpenText creates an UTF-8-encoded StreamReader object to read the myFile file StreamReader sR5 = myFile. openText (); // It can also be written in this way. Create a StreamReader object to open an existing UTF-8 fil

A File object represents a File. It provides some useful methods to check whether the File exists, rename the File, and delete the File. All these methods are static. That is to say, you cannot use the NEW operator to create a File instance, but you can directly use the File method. If (File. Existas ("File.txt "))File. Delete ("File.txt "); You can also use a File object to obtain the File stream used to read and write File data ).FileStream fs = File. OpenRead ("File. any "); FileStream fs = F

creating a class instance. Suppose you want to delete a file with these two classes, you can do this: ' Use the File class File.delete (FileName) ' Use the FileInfo class Dim Finfo as FileInfo Finfo = new FileInfo (fileName) Finfo.delete () Note that the Delete method of the file class takes only one parameter, the file to be deleted, and can be invoked without instantiating the file class. Looking at the FileInfo class again, its Delete method takes no arguments, because the file name is sp