file-read

问题 How can I read File 1 and File2 from the below diagram into class objects and write all the instances of the class into a new File containing all the attributes of both File 1 and File 2? I am taking all attributes as an instance of student class as shown below. How to read both file 1 and file2 into one file either as file 3, file 4, or file 5. which format is more feasible to store those attribute, ArrayList or hashmap, and how 来源： https://stackoverflow.com/questions/64858171/how-to-read

问题 How can I read File 1 and File2 from the below diagram into class objects and write all the instances of the class into a new File containing all the attributes of both File 1 and File 2? I am taking all attributes as an instance of student class as shown below. How to read both file 1 and file2 into one file either as file 3, file 4, or file 5. which format is more feasible to store those attribute, ArrayList or hashmap, and how 来源： https://stackoverflow.com/questions/64858171/how-to-read

问题 I have 27 csv files containing employee timesheet data with about 2000 lines of data in total, and is growing day by day. I am writing an application that compiles the data in each file to a single csv file for analysis in Excel. I do this by reading each file, write its contents to a string list and then write the string list to a new file. Below is the code writing the list to the file: FileStream fs = new FileStream(saveFileDialog1.FileName, FileMode.CreateNew, FileAccess.ReadWrite);

问题 I have 27 csv files containing employee timesheet data with about 2000 lines of data in total, and is growing day by day. I am writing an application that compiles the data in each file to a single csv file for analysis in Excel. I do this by reading each file, write its contents to a string list and then write the string list to a new file. Below is the code writing the list to the file: FileStream fs = new FileStream(saveFileDialog1.FileName, FileMode.CreateNew, FileAccess.ReadWrite);

问题 #include iostream #include cmath #include fstream #include cstdlib #include string using namespace std; class Device {//Input and store Device Description and Serial Numbers protected: string serial_number; string device_description; public: Device() { serial_number = ("6DCMQ32"); device_description = ("TheDell"); } }; class Test {//Input and store Test Description, recent day, and month; Calculate the next day protected: string Test_Description; static int recent_month, recent_day, recent

问题 I need to read chunks of 64KB in loop, and process them, but stop at the end of file minus 16 bytes : the last 16 bytes are a tag metadata. The file might be super large, so I can't read it all in RAM. All the solutions I find are a bit clumsy and/or unpythonic. with open('myfile', 'rb') as f: while True: block = f.read(65536) if not block: break process_block(block) If 16 <= len(block) < 65536 , it's easy: it's the last block ever. So useful_data = block[:-16] and tag = block[-16:] If len

问题 I need to read chunks of 64KB in loop, and process them, but stop at the end of file minus 16 bytes : the last 16 bytes are a tag metadata. The file might be super large, so I can't read it all in RAM. All the solutions I find are a bit clumsy and/or unpythonic. with open('myfile', 'rb') as f: while True: block = f.read(65536) if not block: break process_block(block) If 16 <= len(block) < 65536 , it's easy: it's the last block ever. So useful_data = block[:-16] and tag = block[-16:] If len

来源： https://stackoverflow.com/questions/63738738/unable-to-write-proc-sys-kernel-ns-last-pid-file

问题 I read the .der file as follows. byte[] byteKey = File.ReadAllBytes(openFileDialog1.FileName); X509Certificate2 cert = new X509Certificate2(byteKey); but it doesn't have private key. It has only public key. cert.HasPrivateKey return false. When I search it, I found that '.der file doesn't have private Key, private Key is in .key file'. I use Notepad ++ to open a .key file in the same path as the .der file, the broken text will be printed. first question, How to read private key from .key file

问题 I read the .der file as follows. byte[] byteKey = File.ReadAllBytes(openFileDialog1.FileName); X509Certificate2 cert = new X509Certificate2(byteKey); but it doesn't have private key. It has only public key. cert.HasPrivateKey return false. When I search it, I found that '.der file doesn't have private Key, private Key is in .key file'. I use Notepad ++ to open a .key file in the same path as the .der file, the broken text will be printed. first question, How to read private key from .key file