for-loop

问题 I am trying to write a long list of numbers to a file in C# but it keeps stopping before the end of the list. For example the following code: System.IO.StreamWriter file = new System.IO.StreamWriter("D:\\test.txt"); for (int i = 0; i < 500; i++) { file.WriteLine(i); } Leaves me with a text file listing the numbers 0 to 431. Changing 500 to 1000 gets me 0 to 840. It just always seems to stop writing before the loop is finished. Outputing the numbers to console as well as file successfully

问题 I write a program to print integer values using for loop and after printing, the program should wait one second, after that those integers are overwrite with double space character in other words the purpose of the program is to erase those integer after wait for one second. This the program: #include <stdio.h> #include <time.h> int main (void) { int i; for(i=1;i<=5;i++){ printf("%d ",i); } for(;clock () < CLOCKS_PER_SEC;){} /*wait for one second*/ printf("\r"); /*move to the beginning of the

问题 The code I am working with takes in a .pdf file, and outputs a .txt file. My question is, how do I create a loop (probably a for loop) which runs the code over and over again on all files in a folder which end in ".pdf"? Furthermore, how do I change the output each time the loop runs so that I can write a new file each time, that has the same name as the input file (ie. 1_pet.pdf > 1_pet.txt, 2_pet.pdf > 2_pet.txt, etc.) Here is the code so far: path="2_pet.pdf" content = getPDFContent(path)

问题 In JS I stumbled across a kind of for loop which is for(;;) that functions like a while(true) loop. What do the semicolons function in the brackets of this for loop? 回答1: for (statement 1; statement 2; statement 3) { code block to be executed } Statement 1 is optional and is executed before the loop (the code block) starts. var i = 0; var length = 10 for (; i < length; i++) { //The for loop run until i is less than length and you incerement i by 1 each time. javascript doesnt care what you do

问题 I have done a batch file to help me doing a measurement but I don't know how to put it in a for-loop to make it for n times and to change the name of the folder in "Results" as it changes in the for loop (here I have 01 but just for one measurement time without for loop). This is the code that I have done: @echo off @set var1=var1.exe @set var2=C:\...\...\... .txt @set Results=C:\....\Results\01 Mkdir %Results% %var1% %var2% %Results% I tried to use this code: FOR /L %%A IN (1,1,10) DO (

问题 My struggle: Reading two lines and jumping over the third. Then I want to store all the objects in a dictionary with the name as keys. **** Ingredients.txt **** Name1 ingredient1/ingredient2/ingredient3 Name2 ingredient1/ingredient2 Name3 ... class Foodset(object): def __init__(self, name): self.name = name self.ingredients = set([]) def __str__(self): return str(self.name) + ' consits of: ' + ", ".join(str(e) for e in self.ingredients) + '.' def setIngredients(self, list): for i in list:

问题 I would like a simple example for Java 8 Streams to understand it. I have this code that returns a free taxi. I would like to replace this for loop with equivalent code that uses Java 8 streams : private List<Taxi> taxis = new ArrayList<Taxi>(); Taxi scheduleTaxi(){ for (Taxi taxi : taxis) { if (taxi.isFree()) { return taxi; } } return null; } I iterate over a list of taxis , and evaluate if taxi respects the condition. If the condition applies, I stop the loop and return taxi . Any

问题 I'want to add an eventListener to the table cells so each time a table cell is clicked to execute a function . var getDaysInMonth = function (year, month) { return new Date(year, month, 0).getDate(); } var calendar = { month: function () { var d = new Date(); return d.getMonth() + this.nextMonth; }, year: function () { var y = new Date(); return y.getFullYear(); }, nextMonth: 1, cellColor: 'white', } var loopTable = function () { var daysInMonth = getDaysInMonth(calendar.year(), calendar

问题 This question already has an answer here : Generate multiple graphics from within an R function (1 answer) Closed 1 year ago . I need to make a bunch of individual plots and want to accomplish this in a for loop. I am using ggplot2. I would just use the facet option if it could save each graph in a separate file, which I don't think it can do. There is something going on because the plots are not saved into the files. The files are generated, though, but are empty. Here is an idea of what my

问题 I know this was asked a lot but I can not work with/understand the answers so far. I want to change the suffix of variables in a for loop. I tried all answers the stackoverflow search provides. But it is difficult to understand specific codes the questioner often presents. So for clarification I use an easy example. This is not meant as application-oriented. I just want to understand how I can change the suffix. var_1 = 10 var_2 = 100 var_3 = 1000 for i in range(1,4): test_i = var_i + 1 print