numbers

问题 UPDATE: I should have specified this sooner, but not all of the names are simply floats. For example, some of them are "prefixed" with "YT". So for example" YT1.1. so, you have the same problem YT1.9 < YT1.11 should be true. I'm really surprised that the string comparison fails.... hello, this should be a pretty simple question but I can't seem to find the answer. I'd like to sort a bunch of XL worksheets by name. Each of the names are numbers but in the same way that textbook "sections" are

问题 A friend is linking my page from his site. As I need users to avoid caching when visiting my page, I want the url to have this form: http://www.mypage.com/index.php?456646556 Where 456646556 is random number. As my friend does not have installed php, how can I build the link with the random number using Javascript? Also my friend asked me to give him just the url, with no further functions as his page is already loaded with them. Can it be done? Thanks a lot 回答1: I would add a parameter but

问题 This question already has answers here : Is there any generic Parse() function that will convert a string to any type using parse? (5 answers) Closed 4 months ago . To parse a string to an int, one calls Int32.Parse(string) , for double, Double.Parse(string) , for long, Int64.Parse(string) , and so on.. Is it possible to create a method that makes it generic, for example, ParseString<T>(string) ? where T can be Int32 , Double , etc. I notice the number of types don't implement any common

问题 I have a task to read n given numbers in a single line, separated by a space from the console. I know how to do it when I read every number on a separate line ( Console.ReadLine() ) but I need help with how to do it when the numbers are on the same line. 回答1: You can use String.Split. You can provide the character(s) that you want to use to split the string into multiple. If you provide none all white-spaces are assumed as split-characters(so new-line, tab etc): string[] tokens = line.Split()

问题 Given a number n , a minimum number min , a maximum number max , what is the most efficient method to determine Number n is or is not within range , inclusive of , min - max Number n does or does not contain duplicate numbers Efficiency meaning here that the method or set of methods requires the least amount of computational resources and returns either true or false in the least amount of time Context: Condition at if within a for loop which could require from thousands to hundreds of

问题 How would you make a function that generates a random number from 1 to 25 million? I've thought about using rand() but am I right in thinking that the maximum number, RAND_MAX is = 32000 (there about)? Is there a way around this, a way that doesn't reduce the probability of picking very low numbers and doesn't increase the probability of picking high / medium numbers? Edit: @Jamey D 's method worked perfectly independent of Qt. 回答1: You could (should) use the new C++11 std::uniform_real

问题 I am using the following code which generates random number between 0 to Totalfriends, I would like to get the random numbers but they should not be repeated. Any idea how? This is the code I am using FB.getLoginStatus(function(response) { var profilePicsDiv = document.getElementById('profile_pics'); FB.api({ method: 'friends.get' }, function(result) { // var result =resultF.data; // console.log(result); var user_ids="" ; var totalFriends = result.length; // console.log(totalFriends); var

问题 I am using the following code which generates random number between 0 to Totalfriends, I would like to get the random numbers but they should not be repeated. Any idea how? This is the code I am using FB.getLoginStatus(function(response) { var profilePicsDiv = document.getElementById('profile_pics'); FB.api({ method: 'friends.get' }, function(result) { // var result =resultF.data; // console.log(result); var user_ids="" ; var totalFriends = result.length; // console.log(totalFriends); var

问题 I am trying to wrap a span around all numbers in a div so I can style them accordingly. I have searched for some javascript to do this with no luck on being able to target all the numbers within the div. It will be for Bible verses that will be copied and pasted into a textarea. I would like to style all of the numbers within that. Similar to how this site does here: http://marshill.com/media/trial/trial-and-jesus#scripture Under the "Scripture" tab. 回答1: Here: elem.innerHTML = elem.innerHTML

问题 Could anyone please me why the output of the following programme is not " different different"? public static void main(String[] args) { float f1=3.2f; float f2=6.5f; if(f1==3.2) System.out.println("same"); else System.out.println("different"); if(f2==6.5) System.out.println("same"); else System.out.println("different"); } o/p :different same 回答1: 6.5 has a finite binary representation: 110.1 Any floating type with at least 4 significant bits can represent this number perfectly. 110