file-io

问题 Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 1 year ago . Improve this question I encounter a problem when I try to open a txt file with chrome from my local file system(file:///home/solomon/Desktop/temp2.txt), chrome save another copy in my download folder instead of open it:( I want to open and view any text based file with chrome, because

问题 How would I scan an entire folder in my Java code and then read each text file in to a separate array? What I'm trying to do is have a set of LocationNodes(class I created) on a map app that I'm creating for my college campus/side project for my resume. When the code initializes, I want my app to scan for all text files in my "LocationTextFiles" folder. Each text file has 3 sets of text: Line 0 (the name of the location), Line 1 (Hours the building is open), and Line 2-EOF (description of the

问题 I have to divide a file.txt into more files. Here's the code: a = 0 b = open("sorgente.txt", "r") c = 5 d = 16 // c e = 1 f = open("out"+str(e)+".txt", "w") for line in b: a += 1 f.writelines(line) if a == d: e += 1 a = 0 f.close() f.close() So , if i run it it gives me this error : todoController\WordlistSplitter.py", line 9, in <module> f.writelines(line) ValueError: I/O operation on closed file I understood that if you do a for loop the file gets closed so I tried to put the f in the for

问题 I've taken a class file(say Foo.class ) using JFileChooser and stored it in a File class object(say File a ). now I've to read metadata like methods and variables of this Foo.class using reflection APIs. My question is that, I've stored it in a , which is just a File reference variable . So how can I use any API on a File. or any other suggestion for doing so are also welcomed. 回答1: as i understand,first of all you need to convert class file to Class object you can do that via UrlClassLoader

问题 I've taken a class file(say Foo.class ) using JFileChooser and stored it in a File class object(say File a ). now I've to read metadata like methods and variables of this Foo.class using reflection APIs. My question is that, I've stored it in a , which is just a File reference variable . So how can I use any API on a File. or any other suggestion for doing so are also welcomed. 回答1: as i understand,first of all you need to convert class file to Class object you can do that via UrlClassLoader

问题 I am testing a function in which both def foo(): with open('input.dat', 'r') as f: .... with open('output.dat', 'w') as f: .... are used. But I only want to mock the write part. Is it possible to do that? Or some other strategy should be used for testing such a function? with patch('__builtin__.open') as m: foo() would fail to read the data. Thanks in advance. 回答1: I found the following solution: from mock import patch, mock_open with open('ref.dat') as f: ref_output = f.read() with open(

问题 I am testing a function in which both def foo(): with open('input.dat', 'r') as f: .... with open('output.dat', 'w') as f: .... are used. But I only want to mock the write part. Is it possible to do that? Or some other strategy should be used for testing such a function? with patch('__builtin__.open') as m: foo() would fail to read the data. Thanks in advance. 回答1: I found the following solution: from mock import patch, mock_open with open('ref.dat') as f: ref_output = f.read() with open(

问题 I want to do something like this: File root = new File("C:/file.txt"); but on a folder which is shared on a local network. So lets say the file is on 192.168.1.28 how make it with above command? Next not working: File root = new File("//192.168.1.2/file.txt"); File root = new File("\\\\192.168.1.2/file.txt"); File root = new File("\\192.168.1.2/file.txt"); File root = new File("file:\\192.168.1.2/file.txt"); File root = new File("file://192.168.1.2/file.txt"); Thanks a lot. 回答1: I think it is

问题 This question already has an answer here : No matching function - ifstream open() (1 answer) Closed 5 years ago . I'm learning C++ and i'm getting some troubles when i'm trying to use a String in a ifstream method, like this: string filename; cout << "Enter the name of the file: "; cin >> filename; ifstream file ( filename ); Here is the full code: // obtaining file size #include <iostream> #include <fstream> using namespace std; int main ( int argc, char** argv ) { string file; long begin

问题 In python I'm seeing evidence that fp.readlines() is closing the file when I try to access the fp later in the program. Can you confirm this behavior, do I need to re-open the file again later if I also want to read from it again? Is the file closed? is similar, but didn't answer all of my questions. import sys def lines(fp): print str(len(fp.readlines())) def main(): sent_file = open(sys.argv[1], "r") lines(sent_file) for line in sent_file: print line this returns: 20 回答1: Once you have read