do-while

问题 I'm trying to write some very basic code, but I'm also challenging myself on regular expression. I've been able to muddle through the code up to a point, but where I'm really having a problem is that I'm trying to run a do...while loop while the expression is false. At this point in time I get absolutely no errors, but the do...while loop keeps running. I'm attaching the relevant code below, here's hoping it helps. Thank you in advance if (tollResponse == "yes") { Console.WriteLine("How much

问题 I am trying to loop through Excel files, open them, run some code that breaks passwords then closes the workbook and moves to the next. My code works on most of my files. I am having trouble with files that have macros in them. (That is the only thing I can see that differentiates these files from the others.) I have noticed that with the problem files when I open them my wb variable is set to nothing. It still opens the file and my code continues to run but when I execute the line wb.close

问题 I would like to get a result using a do while loop. However, my result gives only one record... What I'm trying to do is: Move through rs (record-set) records Check if a value in rs is equal to rs2 If so, copy the username from rs to rs2 Move to the next record Do While Not rs.BOF ' No of records in rs Do While Not rs2.EOF ' No of records in rs2 If Trim(rs2![pic_no]) = Trim(rs![pic]) Then rs![UserID] = rs2![NEW_USER] rs2.MoveNext rs.Update Else rs2.MoveNext rs.Update End If Loop rs

问题 I am a new java programmer and I am writing a program that sets 3 model numbers for 3 printers. If user inputs wrong values I want it to continue asking user for the model number. I got it to work but only if the first value the user inters the the number for one of the 3 printers. if the first value is not one of the possible values and the second input is it still keeps repeating the loop. package printing; import java.util.Scanner; public class newClass { public static void main(String[]

问题 How would I make a loop that does the loop until one of multiple conditions is met. For example: do { srand (time(0)); estrength = rand()%100); srand (time(0)); strength = rand()%100); } while( ) //either strength or estrength is not equal to 100 Kind of a lame example, but I think you all will understand. I know of &&, but I want it to only meet one of the conditions and move on, not both. 回答1: Use the || and/or the && operators to combine your conditions. Examples: 1. do { ... } while (a ||

问题 Why doesn't Python have a 'do while' loop like many other programming language, such as C? Example : In the C we have do while loop as below : do { statement(s); } while( condition ); 回答1: There is no do...while loop because there is no nice way to define one that fits in the statement: indented block pattern used by every other Python compound statement. As such proposals to add such syntax have never reached agreement. Nor is there really any need to have such a construct, not when you can

问题 I am having a frustrating time. I have written a script which should read a file line by line, and do an operation based on that line. Specifically, I'm using handbrake CLI to convert a partial directory (based on a file list) to another smaller format. I've tested the script using "echo"s for the command line to dry run it, but when I want to actually run the script, it only runs the command on the first item in the list, and then exits. Here's the code: #!/bin/bash if [ "$1" != "" ]; then

问题 Very simple problem that I can't seem to wrap my head around. I'm writing a bicycle program that calculates MPH based on the cadence and gears set on the bike. The gears that can be set are between 1-3 and the cadence is between 1-100. TL;DR If a user enters a number outside of that range, I'm having trouble figuring out how to have the program prompt them again until they enter the correct range. I'm also having trouble figuring out how to get the entire BicycleTest program to loop over once

问题 I have created my menu with do~while(true); but every time the user insert a number, instead of running the program it shows the the menu again! what do you think? // my main method public static void main(String[] args) { DataReader reader = new DataReader(); // The reader is used to read data from a file // Load data from the file if(reader.loadData(args[0])) { // The filename is entered using a command-line argument vehicles= reader.getVehicleData(); // Store the arrays of Vehicle //

问题 I have created my menu with do~while(true); but every time the user insert a number, instead of running the program it shows the the menu again! what do you think? // my main method public static void main(String[] args) { DataReader reader = new DataReader(); // The reader is used to read data from a file // Load data from the file if(reader.loadData(args[0])) { // The filename is entered using a command-line argument vehicles= reader.getVehicleData(); // Store the arrays of Vehicle //