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问题 Please close if this is a duplicate, but this answer does not answer my question as I would like to print a list, not elements from a list. For example, the below does not work: mylist = [0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15] print(%3s % mylist) Desired output: [ 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15] Basically, if all items in the list are n digits or less, equal spacing would give each item n+1 spots in the printout. Like setw in c++. Assume n is known. If I have missed a similar SO

问题 Hello I am creating a Swing application to create a word document. I have made use of the Apache POI Java API for this purpose. But the problem is --> How do I set the word document to be read only after creation? I have heard of java.io.File.setReadOnly() method, but I don't know how to use it in this context. Here is the code: private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) { try{ FileOutputStream outStream=new FileOutputStream("New.docx"); XWPFDocument doc =new

问题 After creating a plot matrix using GGally::ggpairs() , I would like to store the individual scatter plots for later use. Here is my current code: # load necessary package library(GGally) # loads `ggplot2` library(magrittr) # allows for the use of `%>%` # create a matrix of plots mtcars %>% na.omit() %>% ggpairs(columns = 1:7) # how do I automate this process? P1 <- ggplot(aes(x = disp, y = hp)) + geom_point() P2 <- ggplot(aes(x = drat, y = hp)) + geom_point() P3 <- ggplot(aes(x = hp, y = qsec

问题 I am running VS Code (Version 1.52) with extensions Jupyter Notebook (2020.12) and Python (2020.12) on MacOS Catalina. Context: I have problems getting Intellisense to work properly in my Jupyter Notebooks in VS Code. Some have had some success with adding these config parameters to the global settings of VS Code: "python.dataScience.runStartupCommands": [ "%config IPCompleter.greedy=True", "%config IPCompleter.use_jedi = False" ] I went ahead and added those as well but then had to realize

问题 I am running VS Code (Version 1.52) with extensions Jupyter Notebook (2020.12) and Python (2020.12) on MacOS Catalina. Context: I have problems getting Intellisense to work properly in my Jupyter Notebooks in VS Code. Some have had some success with adding these config parameters to the global settings of VS Code: "python.dataScience.runStartupCommands": [ "%config IPCompleter.greedy=True", "%config IPCompleter.use_jedi = False" ] I went ahead and added those as well but then had to realize

问题 After creating a plot matrix using GGally::ggpairs() , I would like to store the individual scatter plots for later use. Here is my current code: # load necessary package library(GGally) # loads `ggplot2` library(magrittr) # allows for the use of `%>%` # create a matrix of plots mtcars %>% na.omit() %>% ggpairs(columns = 1:7) # how do I automate this process? P1 <- ggplot(aes(x = disp, y = hp)) + geom_point() P2 <- ggplot(aes(x = drat, y = hp)) + geom_point() P3 <- ggplot(aes(x = hp, y = qsec

问题 So I have the following qi skipper: template<typename Iterator> struct verilog_skipper : public qi::grammar<Iterator> { verilog_skipper() : verilog_skipper::base_type(skip) { namespace phx = boost::phoenix; skip = qi::ascii::space | qi::eol | line_comment; line_comment = (qi::lit("//") >> *(qi::char_ - qi::eol) >> *(qi::eol)); } qi::rule<Iterator> skip; qi::rule<Iterator> line_comment; }; and the following qi grammar: template <typename Iterator, typename Skipper = verilog_skipper<Iterator>

问题 I have 2 python programs running. Script1 writes entries to a table periodically, and Script2 reads from the same MySQL table. Both are running simultaneously. Script2 must get the last (latest added) entry of the table. Now, the problem is that Script1 is adding entries to the table perfectly, but Script2 is unable to read the latest entry each time. It reads the latest entry only when I close the connection after reading, and re-open it when I want to read again. Is this the only approach

问题 I am running VS Code (Version 1.52) with extensions Jupyter Notebook (2020.12) and Python (2020.12) on MacOS Catalina. Context: I have problems getting Intellisense to work properly in my Jupyter Notebooks in VS Code. Some have had some success with adding these config parameters to the global settings of VS Code: "python.dataScience.runStartupCommands": [ "%config IPCompleter.greedy=True", "%config IPCompleter.use_jedi = False" ] I went ahead and added those as well but then had to realize

问题 Is there a way wherein we can remove XMP metadata on a PDF/A Document without removing the PDF/A standardization? I found that using PdfReader reader = new PdfReader(src); PdfDictionary dict = reader.getCatalog(); dict.remove(PdfName.METADATA); dict.remove(PdfName.PROPERTIES); reader.removeUnusedObjects(); Removes both XMP and PDF/A. Is there a way to remove the XMP while retaining the standard or reintroducing PDF/A into the processed document? Thanks. 回答1: You can't remove the XMP