如何从文件中读取和写入？ [英] How do I read and write from a file?

问题描述

我想将以下信息写入文件.....流文件,,,,,,

i want to write the following information to a file.....a stream file,,,,,,

Console.WriteLine("________________Student information______________");
                   Console.WriteLine("Enter student name ");
                   Firstname = Console.ReadLine();
                   Console.WriteLine("Enter the Surname ");
                   Surname = Console.ReadLine();
                   Console.WriteLine("Enter student date of birth");
                   DOB = DateTime.Parse(Console.ReadLine());
                   Console.WriteLine("Enter student Gender either F/M ");
                   Gender = char.Parse(Console.ReadLine());
                   Console.WriteLine("Total fees paid N$");
                   Total_Fees_paid = double.Parse(Console.ReadLine());
                   amount_owed = totalcost - Total_Fees_paid;
                   Console.WriteLine("__________NEXT OF KIN__________");
                   Console.WriteLine("Enter next of kin/parent/gurdian's Title ");
                   nTitle = Console.ReadLine();
                   Console.WriteLine("Enter next of kin/parent/gurdian's Name ");
                   nFirstname = Console.ReadLine();
                   Console.WriteLine("Enter next of kin/parent/gurdian's Surname ");
                   nsurname = Console.ReadLine();
                   Console.WriteLine("Enter next of kin/parent/gurdian's date of birth");
                   nDOB = DateTime.Parse(Console.ReadLine());
                   Console.WriteLine("Enter next of kin/parent/gurdian's Occupation");
                   nOccupation = Console.ReadLine();
                   Console.WriteLine("Enter next of kin/parent/gurdian's Desgnation");
                   nDesgination = Console.ReadLine();

我尝试过：



Streamwriter wr = new Streamwriter;

What I have tried:

Streamwriter wr = new Streamwriter;

推荐答案

）;
Total_Fees_paid = < span class =code-keyword> double .Parse（Console.ReadLine（））;
amount_owed = totalcost - Total_Fees_paid;
Console.WriteLine（ __________ NEIN OF KIN __________）;
Console.WriteLine（ 输入kin / parent / gurdian的标题）;
nTitle = Console.ReadLine（）;
Console.WriteLine（ 输入kin / parent / gurdian的名称）;
nFirstname = Console.ReadLine（）;
Co nsole.WriteLine（ 输入kin / parent / gurdian的下一个姓氏）;
nsurname = Console.ReadLine（）;
Console.WriteLine（ 输入亲属/父母/ gurdian出生日期的下一个） ;
nDOB = DateTime.Parse（Console.ReadLine（））;
Console.WriteLine（ 输入kin / parent / gurdian的职业）;
nOccupation = Console.ReadLine（）;
Console.WriteLine（ 输入kin / parent / gurdian的下一个Desgnation）;
nDesgination = Console.ReadLine（）;

"); Total_Fees_paid = double.Parse(Console.ReadLine()); amount_owed = totalcost - Total_Fees_paid; Console.WriteLine("__________NEXT OF KIN__________"); Console.WriteLine("Enter next of kin/parent/gurdian's Title "); nTitle = Console.ReadLine(); Console.WriteLine("Enter next of kin/parent/gurdian's Name "); nFirstname = Console.ReadLine(); Console.WriteLine("Enter next of kin/parent/gurdian's Surname "); nsurname = Console.ReadLine(); Console.WriteLine("Enter next of kin/parent/gurdian's date of birth"); nDOB = DateTime.Parse(Console.ReadLine()); Console.WriteLine("Enter next of kin/parent/gurdian's Occupation"); nOccupation = Console.ReadLine(); Console.WriteLine("Enter next of kin/parent/gurdian's Desgnation"); nDesgination = Console.ReadLine();

我尝试过：



Streamwriter wr = new Streamwriter;

What I have tried:

Streamwriter wr = new Streamwriter;

如何：将文本写入文件 [ ^ ]



但是你最好存放具有保存输入数据的属性的类中的数据，并序列化该类的类。



基本序列化 [ ^ ]

StreamWriter wr = new StreamWriter（@c：\ file.txt）;

wr.WriteLine（FirstName）;

wr.WriteLine（Surname）;

......等其余部分...

wr.Close（）;





如果你想每次附加到文件，那么使用：StreamWriter wr = new StreamWriter（@c：\ file.txt，true）;

StreamWriter wr = new StreamWriter(@"c:\file.txt");
wr.WriteLine(FirstName);
wr.WriteLine(Surname);
...etc for the rest of the lines...
wr.Close();


If you want to append to the file everytime then use: StreamWriter wr = new StreamWriter(@"c:\file.txt", true);

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