copy

问题 I need a function in python that lets me specify the source and destination paths for a folder and copies the source folder recursively into the destination folder. The implementation I am looking for needs to be platform independent 回答1: You could use shutil.copytree: shutil.copytree(src, dst, symlinks=False, ignore=None, copy_function=copy2, ignore_dangling_symlinks=False) Recursively copy an entire directory tree rooted at src, returning the destination directory. The destination directory

问题 I need a function in python that lets me specify the source and destination paths for a folder and copies the source folder recursively into the destination folder. The implementation I am looking for needs to be platform independent 回答1: You could use shutil.copytree: shutil.copytree(src, dst, symlinks=False, ignore=None, copy_function=copy2, ignore_dangling_symlinks=False) Recursively copy an entire directory tree rooted at src, returning the destination directory. The destination directory

问题 I'm sure this has been answered before, but I can't find a good explanation. I'm writing a graphics program where a part of the pipeline is copying voxel data to OpenCL page-locked (pinned) memory. I found that this copy procedure is a bottleneck and made some measurements on the performance of a simple std::copy . The data is floats, and every chunk of data that I want to copy is around 64 MB in size. This is my original code, before any attempts at benchmarking: std::copy(data, data

问题 I'm sure this has been answered before, but I can't find a good explanation. I'm writing a graphics program where a part of the pipeline is copying voxel data to OpenCL page-locked (pinned) memory. I found that this copy procedure is a bottleneck and made some measurements on the performance of a simple std::copy . The data is floats, and every chunk of data that I want to copy is around 64 MB in size. This is my original code, before any attempts at benchmarking: std::copy(data, data

问题 I am working on a file sharing site right now and I've run into a small problem. I am using the upload scrip uploadify which works perfectly but if the user wants i want the uploaded file to be encrypted. Now i have working code that does this as shown below but my server only has 1GB or memory and using stream_copy_to_stream seems to take up the size of the actually file in memory and my max upload size is 256 so i know for a fact that something bad is going to happen when the site goes live

问题 I am working on a file sharing site right now and I've run into a small problem. I am using the upload scrip uploadify which works perfectly but if the user wants i want the uploaded file to be encrypted. Now i have working code that does this as shown below but my server only has 1GB or memory and using stream_copy_to_stream seems to take up the size of the actually file in memory and my max upload size is 256 so i know for a fact that something bad is going to happen when the site goes live

问题 I try to implement this behavior http://jsfiddle.net/Aneeshmohan/qbxfbmtt/ in angular 8. I use angular cdk drag-drop module https://stackblitz.com/edit/angular-4ppaey?file=src%2Fapp%2Fapp.module.ts but I have some problems: $('.dragger').draggable({ revert: "invalid", helper: function () { //Code here return $("<div class='dragger'></div>").append("Hi"); } }); $(".dropper").droppable({ drop: function (event, ui) { $(this) .addClass("ui-state-highlight") .find("p") .html("Dropped!"); var

问题 If I create a 2D int array in Java, and then make a copy of it using Arrays.copyOf() , like so - jshell> int[][] c1 = {{1,2}, {3,4}} c1 ==> int[2][] { int[2] { 1, 2 }, int[2] { 3, 4 } } jshell> int[][] d1 = Arrays.copyOf(c1, c1.length) d1 ==> int[2][] { int[2] { 1, 2 }, int[2] { 3, 4 } } If I then change an element in the copy, why does the corresponding cell in the original 2D array get mutated in the process? jshell> d1[0][0] = 0 $21 ==> 0 jshell> d1 d1 ==> int[2][] { int[2] { 0, 2 }, int[2

问题 So I have homework that asked me to: Write a method that takes two parameters: an array of integers and an integer that represents a number of elements. It should return a two-dimensional array that results from dividing the passed one-dimensional array into rows that contain the required number of elements. Note that the last row may have less number of elements if the length of the array is not divisible by the required number of elements. For example, if the array {1,2,3,4,5,6,7,8,9} and

问题 So I have homework that asked me to: Write a method that takes two parameters: an array of integers and an integer that represents a number of elements. It should return a two-dimensional array that results from dividing the passed one-dimensional array into rows that contain the required number of elements. Note that the last row may have less number of elements if the length of the array is not divisible by the required number of elements. For example, if the array {1,2,3,4,5,6,7,8,9} and