concatenation

问题 I am new to Clojure and I want to define a function pt taking as arguments a number n and a sequence s and returning all the partitions of s in n parts, i.e. its factorizations with respect to n -concatenation. for example (pt 3 [0 1 2]) should produce: (([] [] [0 1 2]) ([] [0] [1 2]) ([] [0 1] [2]) ([] [0 1 2] []) ([0] [] [1 2]) ([0] [1] [2]) ([0] [1 2] []) ([0 1] [] [2]) ([0 1] [2] []) ([0 1 2] [] [])) with the order being unimportant. Specifically, I want the result to be a lazy sequence

问题 I'm writing a bash script in FreeBSD that appends commands to a log file. Before I execute the commands that will append the log data, I want to print a line in the file which shows the current date above the data, like this: ---Tue Aug 20 17:26:37 EDT 2019--- I know that I can use the date command to output the timestamp, but I'm not sure how to include the "---" before and after the timestamp to add to the file. What's the simplest way to do this? 回答1: You can pass a format string to date:

问题 I have two tables t1 (15.6m rows) t2 (22m rows) both contain a property address which i want to use in a SELECT. However the two tables use different column format to store the address; t1 has c1 with string 'apartment 1 building name' then c2 'street' and c3 as 'apartment 1 building name street' t2 has c1 with string 'building name' c2 as 'apartment 1' c3 as 'street' To join the two datasets i understand my options to be add new column c4 in t2 which uses CONCAT on c2 c1 c3 to match format

问题 I need to concatenate 2 rtf fields stored in 2 separate blob columns (actually they are nvarbinary(max) in sql server). I need to do this with a database script, not in an application. Is there a way? Or the only solution is to remove all the rtf headers, concatenate the "body" of the 2 fields and then recreate the headers? By headers I mean \rtf1\ansi\ etc... 回答1: If you can cleanly remove the headers and fix any CRC/length issues, then a simply string concat (which is valid for binary types

问题 As a follow-up from this question: Concatenate input with constant vector in keras I am trying to use the suggested solution: constant=K.variable(np.ones((1,10, 5))) constant = K.repeat_elements(constant,rep=batch_size,axis=0) And got the following Error: NameError: name 'batch_size' is not defined I do not see how one define within the keras model the batch_size [not explicitly] so that one can concatenate a symbolic layer and a constant layer in order to use them as an input layer. 回答1: To

问题 I'm writing a VB.NET application that generates an Excel file. My intention here is to write a particular formula that uses CONCATENATE in a cell. Now, the following line of code fires the above exception: 0) tSheet.Cells(tIncRow + ItemIndex * PixelIndex + PixelIndex, 2).Formula = "=CONCATENATE(" & Pixels(PixelIndex) & ";Batches!J3)" The following row does NOT raise the exception. (It's simply the row above without the = at the beginning. The fact that it doesn't raise the exception means

问题 I have a large window with a little under 200 controls/variables to worry about. Many of them are similar, so I am wondering if instead of repeatedly calling each one individually I can concatenate their names. I'll make an example: I have 5 pieces of data that I'm worried about: Red, Orange, Yellow, Green, Blue. Each one of these will have a label that needs to be made visible, a textbox that needs to be made visible, and a string that contains the text in the textbox: lblRed.Visible = True

问题 I want to concatenate a value inside function in jquery. See code below. I want to put value data 1 into a function. Do you have any way to achieve what I want? Appreciate. var data='1'; var user='<?php echo bp_core_get_user_domain('+ data +');?>'; $("#find_members").html(user); 回答1: Make an empty php page. file.php Inside put the PHP you want to interact with the JS value. <?php function bp_core_get_user_domain($something) { //do Stuff here return $something; } echo bp_core_get_user_domain($

问题 How can I concatenate a jquery variable into a rails partial call? Here's an example: var myAttribute = x; $(this).html('<%= j render partial: "pages/edit_[**myAttribute**]" %>'); Thanks in advance. 回答1: You can try this option, let me know if it works Use .load instead of html: $(this).load("/pages/edit_page?attribute=" + myAttribute); PagesController: def edit_page render "pages/edit_#{params[:attribute]}", layout: false end routes.rb: get "pages/edit_page", to: "pages#edit_page" 回答2: try

问题 I'm searching for a way to concatenate two multiline strings line by line, like paste does with file contents. Is there a equivalent tool like paste for multiline strings? REMARKS: I don't want to use files in any manner! String content 1: A1 A2 A3 A4 String content 2: B5 B6 B7 I would like to have: A1 B5 A2 B6 A3 B7 A4 Maybe with results like a full outer join, having an empty column entry on every position where no data is given? That would be interesting, too: e.g. A1 B5 C8 A2 B6 C9 A3 B7