convert

C++ manually Convert string to int?

匿名 (未验证) 提交于 2019-12-03 02:38:01
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: I was trying to manually convert a string to an int, and I have had difficulties. I first check to see if the string entered is an integer. Next, I want to convert that string to an integer without using any library methods. When I ran the code inside my loop line by line, it did what I needed it to, but when I ran it inside a loop, it spat out incorrect binary results. ==> I am going to check if the value you enter is a number. ==> Enter a number: 234 ==> Input result: 1 ==> Press enter to continue... ==> 11001 // Darian Nwankwo, Random

How can I convert a string with newlines in it to separate lines?

匿名 (未验证) 提交于 2019-12-03 02:38:01
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: How to convert string that have \r\n to lines? For example, take this string: string source = "hello \r\n this is a test \r\n tested" ; and how can I convert that to: string [] lines ; //lines[0] = hello; //lines[1] = this is a test; //lines[2] = tested ; 回答1: Use String.Split Method (String[], StringSplitOptions) like this: var lines = source . Split ( new [] { "\r\n" , "\n" }, StringSplitOptions . None ); This one will work regardless of whether the source is written with Windows linebreak \r\n or Unix \n . As other answers

Convert a Python list with strings all to lowercase or uppercase

匿名 (未验证) 提交于 2019-12-03 02:38:01
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: I have a python list variable that contains strings. Is there a python function that can convert all the strings in one pass to lowercase and vice versa, uppercase? 回答1: It can be done with list comprehensions. These basically take the form of [function-of-item for item in some-list] . For example, to create a new list where all the items are lower-cased (or upper-cased in the second snippet), you would use: >>> [x.lower() for x in ["A","B","C"]] ['a', 'b', 'c'] >>> [x.upper() for x in ["a","b","c"]] ['A', 'B', 'C'] You can also use the map

Convert date string to UTC time with PHP

匿名 (未验证) 提交于 2019-12-03 02:36:02
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: I have the following date string $date = "Sat Apr 30 2011 18:47:47 GMT+0900 (Tokyo)" I want to convert it to UTC time $timestamp_UNIX = strtotime ( $date ); echo date ( "Y-m-d\TH:i:s\Z" , $timestamp_UNIX ); Why do I got 2011 - 04 - 30T11 : 47 : 47Z and not 2011 - 04 - 30T09 : 47 : 47Z 回答1: The problem is that you code does not automatically echo UTC. It echos the timestamp in whatever your default timezone is set to. This is done via date_default_timezone_set() at runtime or via the configuration setting date.timezone in your php

Convert integers to strings to create output filenames at run time

匿名 (未验证) 提交于 2019-12-03 02:35:01
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: I have a program in Fortran that saves the results to a file. At the moment I open the file using OPEN (1, FILE = 'Output.TXT') However, I now want to run a loop, and save the results of each iteration to the files 'Output1.TXT' , 'Output2.TXT' , 'Output3.TXT' , and so on. Is there an easy way in Fortran to constuct filenames from the loop counter i ? 回答1: you can write to a unit, but you can also write to a string program foo character(len=1024) :: filename write (filename, "(A5,I2)") "hello", 10 print *, trim(filename) end program Please

how to convert data.frame to transactions for arules

匿名 (未验证) 提交于 2019-12-03 02:33:02
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: I read data from a csv file, the data has 3 columns, one is transaction id, the other two are product and product catagory. I need to convert this into transactions in order to use the apriori function in arules . It shows an error when I convert to transactions: dat If the data only have two columns, it can work by: trans4 But I don't know how to convert when I have 3 columns. Usually there are the additional columns likes category attributes, customer attributes. so the column usually large than 2 columns. need to find rules between

How to convert `git:` urls to `http:` urls

匿名 (未验证) 提交于 2019-12-03 02:33:02
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: I'm working behind an http proxy. I'm trying to clone Android's source tree using their "repo" tool. This tool insists on using git:// URLs, even though http:// URLs also work. As a result, I can't download the source. Is it possible to force git to always use http ? Edit: my http_proxy is configured correctly. For example, this works: git clone http : //android.git.kernel.org/platform/manifest.git But this doesn't (errno=Connection timed out): git clone git : //android.git.kernel.org/platform/manifest.git So this answer does not

Convert Angular 4 web app to Angular Universal app

匿名 (未验证) 提交于 2019-12-03 02:33:02
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: I have a requirement to convert Angular 4 web app to Angular Universal .The reason for that is currently, the web app is not able to be properly indexed by Google (and Facebook social previews thumbnails) because it's a single page app and rendered on the client side.So now I need to implement Angular Universal, server-side rendering. I got the knowledge of how to create a new Angular Universal app using this great video series . Question: Can you please tell me the direction which I have to follow the convert existing app as an Angular

Convert NSString into byte array iphone

匿名 (未验证) 提交于 2019-12-03 02:33:02
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: Hi I want to convert the NSString into Byte array. if I have string like "Hello" then it convert into byte like this {65,23,56,56,56}. thanks 回答1: Use -[NSString UTF8String] which returns const char* . Read the reference . A general tip: if you want to find if a class has a method which does something, look up the official reference! I mean, on the web, there's not only Stack Overflow, but the API provider's (i.e. Apple's or Microsoft's) official documentations! 回答2: NSData * bytes = [ test dataUsingEncoding : NSUTF8StringEncoding

Convert from String to Date throws Unparseable date exception [duplicate]

匿名 (未验证) 提交于 2019-12-03 02:33:02
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: This question already has an answer here: Java - Unparseable date 2 answers I want to convert a Date to a String but I have some problems. My code is this: SimpleDateFormat formato = new SimpleDateFormat( "EEE MMM dd HH:mm:ss z yyyy"); String hacer = "Fri Nov 01 10:30:02 PDT 2013"; Date test = null; test = formato.parse( hacer); System.out.println("prueba===>" + test); But nothing something is wrong eclipse shows me this error: Unparseable date: "Fri Nov 01 10:30:02 PDT 2013" at java.text.DateFormat.parse(Unknown Source) some help? 回答1: To