while-loop

问题 Closed . This question needs details or clarity. It is not currently accepting answers. Want to improve this question? Add details and clarify the problem by editing this post. Closed 11 months ago . Improve this question I know using recursions way but it works just for loops which beginning and ending statements are same like code below for (int i=1 ; i<5;i++){ for (int j=0; j<5;j++){ for (int m= 0;m<5;m++) { // N time } } } But my problem is different. I do not know N level and beginning

问题 I want to run my program in jupyter notebook and this program stops at specific time(for example 18:00). I wrote program by while loop and incremental index, but it's better to write it with time parameter. I run mentioned program for 7 hours each day. It must run nonstop. while(i<500000): execute algorithm i+=1 But I'd like to run my program like bellow: while(not 18:00 clock): execute algorithm 回答1: import datetime while datetime.datetime.now().hour < 18: do stuff... or if datetime.datetime

问题 I Have an R code that helps me to know at what seed when I use arima.sim() function to simulate ARIMA(1, 0, 0) it will actually simulate ARIMA of order 1, 0, 0 when auto.arima() function is employed for a check. MWE library(forecast) SEED_vector <- 1:10 arima_order_results <- data.frame() flag <- TRUE i <- 1 seed_out <- c() while(flag){ set.seed(SEED_vector[i]) ar1 <- arima.sim(n = 20, model=list(ar=0.8, order = c(1, 0, 0)), sd = 1) ar2 <- auto.arima(ar1, ic = "aicc") if(all(arimaorder(ar2)=

问题 how can i convert following code into windows batch command? Here is a perl script which is searching for a file in a while loop, if found it Exits. use strict; use warnings; my $filename = 'something.txt'; while (1) { if (-e $filename) { print "File Exists!"; exit; } } 回答1: This is a fairly straight-forward translation. The code should be pretty self-explanatory: @ECHO OFF SET LookForFile="C:\Path\To\File.txt" :CheckForFile IF EXIST %LookForFile% GOTO FoundIt REM If we get here, the file is

问题 EDIT: After re-writing my code in my IDE, for the 8th time today, I have made rookie mistake of giving my inputs a false data type, that has been fixed but my outputs still are incorrect. Details about my goal: When making change, odds are you want to minimize the number of coins you’re dispensing for each customer. Well, suppose that a cashier owes a customer some change and in that cashier’s drawer are quarters (25¢), dimes (10¢), nickels (5¢), and pennies (1¢). The problem to be solved is

问题 there must be various ways to find string in txt file by using python, but what is the best way? ( for speed, for resources .. ) My first idea was as below. file = open('/home/socfw/src/edl/outbound_monthly.txt') inputIP = '127.0.0.1' while (1): line = file.readline() if inputIP in line: print("ok") break But, it's too slow to use web service properly (it is actually backend logic of my web service) txt file looks like as below test.txt ( IPV4 addresses are in here, and they counts almost 60k

问题 Here's my code: package javaapplication2; import java.awt.Color; import java.awt.Graphics; import javax.swing.JFrame; import javax.swing.JPanel; public class JavaApplication2 extends JPanel { public static void main(String[] args) { JFrame frame = new JFrame("Simple Sketching Program"); frame.getContentPane().add(new JavaApplication2()); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setSize(400, 300); frame.setVisible(true); } @Override public void paint(Graphics g) { g.setColor

问题 I want know if there is a elegant method for looking if a value that continually changes in a while loop can be checked and stop the while loop if the value stops change and remains the same. For example: Value = 0 while True: value changes everytime (if value still the same break) 回答1: How about this way? BTW: Fix your typo error while is not While in python. value = 0 while True: old_value, value = value, way_to_new_value if value == old_value: break 回答2: previous = None current = object()

问题 I am currently trying to run a .py file but in a loop. Just for a test I am using I = 0 while I<10: os.pause(10) open(home/Tyler/desktop/test.py) I = I + 1 I am sure this is a very simple question but I can't figure this one out. I would also like to add in the very end of this I have to make this run infinitely and let it run for some other things. 回答1: There are a few reasons why your code isn't working: Incorrect indentation (this may just be how you copied it on to StackOverflow though).

问题 I am currently trying to run a .py file but in a loop. Just for a test I am using I = 0 while I<10: os.pause(10) open(home/Tyler/desktop/test.py) I = I + 1 I am sure this is a very simple question but I can't figure this one out. I would also like to add in the very end of this I have to make this run infinitely and let it run for some other things. 回答1: There are a few reasons why your code isn't working: Incorrect indentation (this may just be how you copied it on to StackOverflow though).