while-loop

问题 I wrote a simple program for teaching purposes and everything works except for the part where it prints out the name and the answer to the computation you chose. The if-statement seems to executing twice, as if it were taking a step backwards before going forward. It will print out the "Would you like to continue", but instead of prompting the user for a Y/N it will print out the answer to the computation AGAIN followed by the question of whether they would like to continue except the second

问题 I have been working on a object movement along a path Which i have been geting from Navmesh Unity3d I am using coroutine in which i controled it with while loop as i can show public void DrawPath(NavMeshPath pathParameter, GameObject go) { Debug.Log("path Parameter" + pathParameter.corners.Length); if (agent == null || agent.path == null) { Debug.Log("Returning"); return; } line.material = matToApplyOnLineRenderer; line.SetWidth(1f, 1f); line.SetVertexCount(pathParameter.corners.Length);

问题 I'm new with javascript, and I'm having some trouble understanding why this code doesn't execute: var weight; wight=parseInt(prompt("Please, enter weight"); while(weight>0); { if (weight>199 && weight<300); { document.write("Tax will be" + weight*5); } else { document.write("Tax will be" + weight*10); } } Edit: I'm sorry, I mispelled some 'weights' while writing down the code here. Either way, that's not the problem. When I run this in google chrome, it just doesn't prompt. And when it

问题 been working on this for hours, thought i had it down but it turns out i have it all wrong. The assignment is to Write a program that computes your semester average and letter grade for the course *******The user will enter these numbers:****** A list of quiz scores. Each score is in the range 0–10. The user enters the sentinel value –1 to end the input. Drop the lowest quiz score.* A list of project scores. Each score is in the range 0–10. The user enters the senti- nel value –1 to end the

问题 I have an issue appending or in fact printing anything after this block of code: reversedPriv = [52,27,13,6,3,2] array= [9] var = 0 numA = [] for i in array: for j in reversedPriv: while var!= j: if j < i: var = var + j numA.append(j) numA.sort() print(numA) I am expecting it to append [3,6] to numA and print but it currently does nothing. Is there some condition for the while loop that I'm overlooking? The point of the code is to find which elements in 'reversedPriv' sum up to each element

问题 This question already has answers here : Python evaluates 0 as False (5 answers) What is Truthy and Falsy? How is it different from True and False? (5 answers) Closed 2 years ago . Why the following while loop is exited when x reaches 0 ? x = 1 while x: print(x) x -= 1 It prints only 1 . Shouldn't the while statement be something like: while x "is something": and not just while x: ? 回答1: Because bool(0) => False , and bool(x) for x!=0 => True , so it's like saying while x!=0 or while x>0 in

问题 In order to call my Web API method until no more data is returned (I'm fetching it in batches, to keep each result set small, due to the 98-lb-weakling persona of the client (Windows CE handheld device)), I'm using this code: while (moreRecordsExist) { redemptionsList.redemptions.Clear(); string uri = String.Format("http://platypus:28642/api/Redemptions/{0}/{1}", lastIdFetched, RECORDS_TO_FETCH); var webRequest = (HttpWebRequest)WebRequest.Create(uri); webRequest.Method = "GET"; using (var

问题 I am trying to count the amount of dollar and coin denominations in a grand total by using a series of while loops. When I get down to the coins however, I am off by a penny. When I enter say 99.95, I get the output 3 quarters, 1 dime, 1 nickel, and 4 pennies. I've narrowed the problem down to a floating point accuracy issue. However all the solutions I've researched haven't been applicable in my situation. Any pointers? #include <iostream> using namespace std; int main() { float amount; cout

问题 I'm trying to see if an int has multiples of the same digit. Trying to do it without string methods or arrays. The main method I'm having trouble with is hasDistinctDigits() . It works when the repeating digits are at the end, but not when they come at the beginning or middle. public static void main(String[] args) { System.out.println(hasDistinctDigits(12234)); } public static boolean hasDistinctDigits(int number) { boolean returner = true; int count = 1; int newNum = number; int digit = 0;

问题 def count_vowels(string) vowels = ["a", "e", "i", "o", "u"] i = 0 j = 0 count = 0 while i < string.length do while j < vowels.length do if string[i] == vowels[j] count += 1 break end j += 1 end i += 1 end puts count end I'm having trouble spotting where this goes wrong. If this program encounters a consonant, it stops. Also, how would the same problem be solved using the ".each" method? 回答1: The problem is that you never reset j to zero. The first time your outer while loop runs, which is to