insertion

问题 I've built a program using the Windows API that detects the insertion of some media (cd, usb...). The program returns the device path: \\\\?\\usb#vid_vvvv&pid_pppp#aaaaaaaaaaaaaaaa#{gggggggg-gggg-gggg-gggg-gggggggggggg} I am using the function GetVolumeNameForVolumeMountPoint to obtain the volume name by parsing the device interface path as reported here, but it seems that this feature is not working for USB devices. Any idea of how to get the volume name from the device path in case of

问题 I'm new to Ruby on Rails and wanted to create a crawler that scrapes data and inserts it into the database. I'm currently using Heroku so I can't access the database directly and was wondering what the best way to integrate a crawler script into the RoR framework would be. I would be using an hourly or daily cron to run the script. 回答1: If you are using Rails on Heroku you can just use an ORM adapter like Datamapper or ActiveRecord. This then gives you access to your database but through a

来源： https://stackoverflow.com/questions/63363624/how-to-change-ttk-entry-insertion-cursor-color

来源： https://stackoverflow.com/questions/63363624/how-to-change-ttk-entry-insertion-cursor-color

问题 I'm using this code to validate my my html form and I now need to add the form data into a table in mysql. How do I proceed I know the basics of creating a connection and sql databases but since I've already used the form's submit button i don't know how to get the data to a place where I can insert it again <?php // define variables and initialize with empty values $nameErr = $passErr = $emailErr =$cpassErr=""; $name = $pass = $cpass = $email = ""; if ($_SERVER["REQUEST_METHOD"] == "POST") {

问题 I am trying to move even numbers in an array to the front and odd numbers to the back of the array. The problem asks to do this in a Linear Algorithm and do this In Place. I came up with this: def sort(a): for i in range(0,len(a)-1): if a[i]%2==0: a.insert(0,a.pop(i)) return a The issue is that, someone told me that technically, a.insert is an o(n) function so technically this would be considered a non-linear algorithm (when including the for i in range part of the function). Since the forum

问题 I feel very confident that i'm right in this code. Logically, it makes sense to me but for some reason the program refuses to run past a certain point. I'm supposed to do this without using proprietary classes or hashtables. My list node is a basic singly linked list. Assuming i have a dummy list at first, 0, i'm able to add one number to the list but that is all. This is the method that will not work beyond adding the first number. Assuming my list is 0 -> 2. and i'm trying to add 1. public

问题 I feel very confident that i'm right in this code. Logically, it makes sense to me but for some reason the program refuses to run past a certain point. I'm supposed to do this without using proprietary classes or hashtables. My list node is a basic singly linked list. Assuming i have a dummy list at first, 0, i'm able to add one number to the list but that is all. This is the method that will not work beyond adding the first number. Assuming my list is 0 -> 2. and i'm trying to add 1. public

问题 I feel very confident that i'm right in this code. Logically, it makes sense to me but for some reason the program refuses to run past a certain point. I'm supposed to do this without using proprietary classes or hashtables. My list node is a basic singly linked list. Assuming i have a dummy list at first, 0, i'm able to add one number to the list but that is all. This is the method that will not work beyond adding the first number. Assuming my list is 0 -> 2. and i'm trying to add 1. public

问题 I have written a linked list code to insert a element in the node. But the problem is when i want to insert first element using function, the output is coming empty. But when i insert first element inside the main function (see comment line), it gives the correct output. How to solve it ? Here is my C code: #include<stdio.h> #include<stdlib.h> typedef struct node{ int val; struct node *next; }node; void print(node *head){ if(tem == NULL){ printf("List is Empty\n"); return; } node *tem= head;