while-loop

问题 The following code works fine just for the button in the very first row of the table. The buttons of the other automatically generated rows don't open any dialog. I guess the problem is that I am not assigning a different id to each button. How can I do that? I read this page but nothing worked. <table class="table-hovered"> <tr> <th class="text-left big">TITOLO</th> <th class="text-centered" align="center"> <img src="img/w.png" width="35" height="35" title="wikipedia" align="middle"><br>

问题 Especially when using while loops scenarios can arise where javascript gets stuck in a continuous loop that can crash the browser. I usually handle this possibility by using a variable to count the number of while executions and break the while after a certain time. While the browser no longer crashes it can still slow things down considerably. Is there a more efficient way of handling this possibility? 来源： https://stackoverflow.com/questions/15676710/how-to-prevent-possible-javascript-memory

问题 I have function named: - (void) AddSortedCustomFeed :(NSMutableArray*) rssList; this function adds items(Articles) from sqlite database to NSMutableArray here how this function works: - (void) AddSortedCustomFeed :(NSMutableArray*)rssList { NSLog(@"\n\n\n ----- Add Sorted SQL Database -----"); NSLog(@"Start"); // Create Query String. NSString* sqliteQuery = [NSString stringWithFormat:@"SELECT mainLink, title, summary, pubDate, author, imageLink, body, favorites, pubdatetime FROM ARTICLES

问题 I am new to python, and still trying to figure out the basics. I've looked for an answer online, but no solutions seem to work for me. I don't know if I'm missing something small, or my total structure is wrong. The calculation portion of my code works like it's supposed to. My problem is, I can't figure out how to ask the user to input yes or no resulting in: (the answer YES restarting the loop so the user can try another calculation) (the answer NO closing the loop/ending the program)

问题 I want to make pairs of words based on the third column (identifier). My file is similar to this example: A ID.1 B ID.2 C ID.1 D ID.1 E ID.2 F ID.3 The result I want is: A C ID.1 A D ID.1 B E ID.2 C D ID.1 Note that I don't want to obtain the same word pair in the opposite order. In my real file some words appear more than one time with different identifiers. I tried this code which works well but requires a lot of time (and I don't know if there are redundancies): counter=2 cat filtered_go

问题 I have seen BufferedReader using while loops to iterate through the contents of a file, with code more or less like: try { FileReader fr = new FileReader(file); Buffered Reader br = new BufferedReader(fr); String line; while ( (line = br.readLine()) != null ) { // do something } } catch () {} what I don't understand is how the while loop is internally incrementing its counter until it has read all lines in the document. To me, the while loop above means "if the first line (line[0]) is not

问题 Is there any reason why I couldn't include two mysql_fetch_array statements working on two different mysql query results in one while loop? The reason is I have two query results from a mysql database each containing two columns as follows: Query 1: Date, Value 1 Query 2: Date, Value 2 Dates in each query are always week ending dates at regular intervals of 1 week ordered in ascending order. However they may start and finish at different dates for either query result. I want to build arrays

问题 Is it possible and if so, how can I do it, to select all entries in a table in my database and then display five results at the time in one group. Meaning: A example is that I've 15 records total in my database, then I want to present my data like this: <div class="1-5">Record[1], Record[2], Record[3], Record[4], Record[5]</div> <div class="6-10">Record[6], Record[7], Record[8], Record[9], Record[10]</div> <div class="11-15">Record[11], Record[12], Record[13], Record[14], Record[15]</div> I'm

问题 I have searched as crazy for the solution to my problem throughout the web, but none exist yet. My problem is that I have to check if I get specific text in HTTP request, which is in a while loop and if I do, then I should leave the loop and continue with the thread or stop the thread completely if text doesn't exist. I have set it up as follows: Thread Group .. While controller .. HTTP request .. Response Assertion Listener I used LAST in the while controller and set HTTP response to false

问题 I am currently writing data from an infinite while loop to an SD Card on a raspberry pi. file = open("file.txt", "w") while True: file.write( DATA ) It seems that sometimes file.txt doesn't always save if the program isn't closed through either a command or a keyboard interrupt. Is there a periodic way to save and make sure the data is being saved? I was considering using open("file.txt", "a") to append to file and periodically closing the txt file and opening it up again. WOuld there be a