while-loop

问题 I am new to php and trying hard to learn its why you guys and gals need to Forgive me for asking a lot! Here is my question; I am trying to call a function with where clause multiple times, I have read allmost all posts and examples still didn't understand how to do it. I tought that An example will be more useful than any blurb I can write. Here is the function I am trying to create and use it multiple times : function getTable($tableName, $clause) { $stmt = $pdo->prepare("SELECT * FROM ".

问题 I am new to php and trying hard to learn its why you guys and gals need to Forgive me for asking a lot! Here is my question; I am trying to call a function with where clause multiple times, I have read allmost all posts and examples still didn't understand how to do it. I tought that An example will be more useful than any blurb I can write. Here is the function I am trying to create and use it multiple times : function getTable($tableName, $clause) { $stmt = $pdo->prepare("SELECT * FROM ".

问题 I have written macro for looping through the files (Excels) in one folder and copy specific cells from it. My macro is working as it should but I have a small problem. Macro is looping files according to save date but I need to loop them according to file name. Is there any way how to make this in macro? Public Sub Data_copy() 'DECLARE AND SET VARIABLES Dim wbk As Workbook Dim Filename As String Dim Path As String Path = "U:\KST\Antrag\" 'PATH Filename = Dir(Path & "*.xlsm") '----------------

问题 I'm making a code so that when a user clicks on the window, it will draw the shape based on their input of choice. I'm having trouble on where I should assign the window and turtle correctly and how to assign to a function a way to quit the window its currently on. Is there any way for me to end a mainloop() so that the user goes back to the main menu after clicking and making as many of their chosen shapes (given that each time they do choose an option, the window resets to a blank state)?

问题 I need help, obviously. Our assignment is to retrieve a file and categorize it and display it in another file. Last name first name then grade. I am having trouble with getting a loop going because of the error "java.util.NoSuchElementException" This only happens when I change the currently existing while I loop I have. I also have a problem of displaying the result. The result I display is all in one line, which I can't let happen. We are not allowed to use arraylist, just Bufferedreader,

问题 With MSSQL, I can mix in case, if...then, and while constructs in my SQL code. Is anything similar available for SQLite? I have not seen anything on "mixing procedurally" with SQLite, anywhere. Thanks. 回答1: SQLite doesn't have any loop syntax - FOR or WHILE . CASE statements are supported rather than IF. 来源： https://stackoverflow.com/questions/1885702/sqlite-flow-constructs-in-sql

问题 I'm looking to perform a character count on a text file and then display each one with it's relative frequency to the rest of the characters, but I'm presently getting just blank console back. Any help would be greatly appreciated. import java.io.*; public class RelativeFrequency { public static void main(String[] args) throws IOException { File file1 = new File("Rf.txt"); BufferedReader in = new BufferedReader (new FileReader (file1)); System.out.println("Letter Frequency"); int nextChar;

问题 I'm a beginner programmer in C++ (currently), and I've got a conceptual question. I'm trying to filter a cin input to ensure that it is a one-or-two-digit integer between 01-04, and if it isn't, to produce an error and ask for a new input. I'm also using map to give the user a list of options that, upon valid selection, routes inputs (integers) through any of several methods to produce a relevant result, but I'll ask a more specific version of this question elsewhere. I found a snippet of

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 5 years ago . Okay so I am only part of the way through my array inventory program, but my while loop that is supposed to prompt a user to re-enter a number when they have entered an invalid one will not execute. When an invalid number is entered the program just ends...I have tried a couple methods and neither are working.

问题 As you can see below here is a copy of my script what I've created, could someone help me improve/fix my currenttime tasks. Basically, during the day periodically calls test every 3 mins +- 60 seconds each periodically cycle it is supposed to do the follow tasks: Anywhere during 23:30:00 to 23:40:00 it turns clearscreen to false Anywhere during 23:40:00 to 23:50:00 it checks if clearscreen is false and if it is then it clears certain files and then it immediately sets clearscreen to false