printing

问题 This question already has answers here : Difference between __str__ and __repr__? (22 answers) Closed 3 months ago . My goal is to print a backslash in Python3. My input is links22 = ['1',"n","nkf"] treee = ['<img src={} \>'.format(i) for i in links22] print(treee) The output that I get is: ['<img src=1 \\>', '<img src=n \\>', '<img src=nkf \\>'] And when I try: print("\\") The output is: \ I want to figure out why the first output is \ and in the second is . 回答1: The first \ is escaping the

问题 public void printTree(node root) { if(root != null) { printTree(root.left); System.out.print(root.word + " " + root.line+" "); String tempStr=root.word; int tempLn=root.line; //don't know how to use it printTree(root.right); } } Assume that the tree is already sorted in a lexicographic order. For example, the file is like this: aaa zzz the the the the and the output should be like this: aaa line: 1 the line: 3 3 3 3 zzz line: 2 My code now displays the same words for many times. I don't know

问题 I want to print one panel of page in GWT. However someone said that you must use iframe because it has print method. I tried this code but it does not work: HTML html=new HTML("<iframe id="myframe"></iframe>") ;.... searchButton.setWidth("80px"); searchButton.addClickHandler(new ClickHandler() { @Override public void onClick(ClickEvent event) { MyNative.printIframeContent("myframe", "onlineMap"); } }); map = new SimplePanel(); map.getElement().setId("onlineMap"); map.add(mapView.getMapWidget(

问题 This question already has answers here : Python: Too much space between printing lines read from a text file [duplicate] (4 answers) Closed 5 days ago . Python code outputs a new line between first name, last name and email address, how can I stop this from happening? e.g. ogchu @gmail.com ogchu @yahoo.com ogchu @hotmail.com ogchu @aol.com ogchu @bigpond.com The first.txt and last.txt files have about 2,000 and 100 names respectively, so manually going through and doing stuff isn't really an

问题 I wrote a c program that listen to 443 port and receives ssl packets : #include <errno.h> #include <ctype.h> #include <limits.h> #include <string.h> #include <stdlib.h> #include <arpa/inet.h> #include <netinet/in.h> #include <sys/stat.h> #include <stdio.h> #define MAX_SIZE 10000 struct ssl_header { uint8_t type; uint16_t version; uint16_t length; }; struct handshake { struct ssl_header hdr; uint8_t type; unsigned int length[3]; unsigned int ssl_version[2]; char random[32]; }; void *message

问题 This is action listener of print button public void hookUpEvents() { print.addActionListener( new ActionListener() { public void actionPerformed( ActionEvent ae ) { PrinterJob job = PrinterJob.getPrinterJob(); job.setPrintable( new Printer() ); boolean doPrint = job.printDialog(); // boolean variable if( doPrint ) { try { job.print(); } catch( PrinterException exc) { System.out.println( exc ); } } else { System.out.println("You cancelled the print"); } } }); } When i compile this snippet

问题 I'm looking for a solution to implement in web apps where I have the option to see a print preview or print either a gridview, datagrid, or datatable or export it to word or excel. What's the best method to do this or has someone written a class that does this, and does it well (I've seen many examples, but many still have errors)? 回答1: Perhaps you could look into converting your DataTable's to Table's in HTML then using the resources for setting up Media types to format it for a print job.

问题 I'm trying to send faxes with a .NET (C#) program using Crystal Reports and Unimessage Pro (or any other fax program). My problem is that Unimessage Pro (and other fax programs) uses printer fonts for the fax commands. Since .NET doesn't support printer fonts the fax commands in the report are converted to Courier New. The result of this is that the fax program doesn't recognize the fax commands but sees them as plain text and the fax isn't sent. How do I send a fax with Crystal Reports and

问题 　Hi I am new with python, I am using pandas to read the csv file data, and print it. The code is shown as following: import numpy as np import pandas as pd import codecs from pandas import Series, DataFrame dframe = pd.read_csv("/home/vagrant/geonlp_japan_station.csv",sep=',', encoding="Shift-JIS") print (dframe.head(2)) but the data is printed like as following(I just give example to show it) However, I want the data to be order with columns like as following: I don't know how to make the

问题 I am using RawPrinterHelper class to print on a Custom VKP80iii. I can print but I cant Cut and Eject the Paper. Does any have a code which Cuts and Ejects the Paper? I tried a lot of Commands but none worked. The last command I found but also didn´t work was : string cutpaper = "" + Convert.ToChar(29) + Convert.ToChar(101) + Convert.ToChar(3) + Convert.ToChar(32); RawPrinterHelper.SendStringToPrinter(pd.PrinterSettings.PrinterName, cutpaper); 回答1: After the kind support of Custom, the