character | 易学教程

strip characters from url on javascript 'onclick'-command

阅读更多关于 strip characters from url on javascript 'onclick'-command

问题 I'm afraid this may be a very stupid question. I want to refer people via a pop-up and automatically fetch the url from the current document (so that I don't have to adapt the code to every page). The link I'm using is like this: <a href="http://www.facebook.com/sharer.php" title="Add to Facebook" onclick="window.open('http://www.facebook.com/sharer.php?u='+encodeURIComponent(location.href), 'facebook','toolbar=no,width=550,height=550'); return false;"></a> The problem I'm facing is with the

How to test if the first three characters in a string are letters or numbers in r?

阅读更多关于 How to test if the first three characters in a string are letters or numbers in r?

问题 The example of the dataset I have is given below, note that I have more than two columns in the total dataset. ID X 1 MJF34 2 GA249D 3 DEW235R 4 4SDFR3 5 DAS3 I want to test whether the first three characters in X are letters, if they are then I want to replace that value to show only the first three letters. If the first three characters aren't letters then I want to replace those values with "FR". Hence the result would be as follows. ID X 1 MJF 2 FR 3 DEW 4 FR 5 DAS Currently X is a

SVN 255 Character Problem

阅读更多关于 SVN 255 Character Problem

问题 I am using TortiseSVN and we have a problem when we exporting etc because subversion errors. The path has a character limit 255 - so I am not sure if this is the problem [I think it is in Win7 x-64 bit] How do I fix this ? i.e. allow paths for >255 characters ? 回答1: It's a Windows limitation, not a tortoise limitation. Has Windows 7 Fixed the 255 Character File Path Limit? 回答2: Subversion works quite well with paths longer than MAX_PATH (256 chars), but you must provide absolute paths for

Array of Strings in Fortran 77

阅读更多关于 Array of Strings in Fortran 77

问题 I've a question about Fortran 77 and I've not been able to find a solution. I'm trying to store an array of strings defined as the following: character matname(255)*255 Wich is an array of 255 strings of length 255. Later I read the list of names from a file and I set the content of the array like this: matname(matcount) = mname EDIT: Actually mname value is harcoded as mname = 'AIR' of type character*255 , it is a parameter of a function matadd() wich executes the previous line. But this is

Split a String to a String[] so that each element is maximum 100 characters and ends in a space

阅读更多关于 Split a String to a String[] so that each element is maximum 100 characters and ends in a space

问题 How do i do this? I tried something like this but I do not seem to be able to get any further. public void speak(String text) { String[] textArray = text.split(" "); System.out.println(text); StringBuilder builder = new StringBuilder(); int index = 0; while(builder.length() < 99) { builder.append(textArray[index] + " "); index++; } System.out.println(builder.toString()); } EDIT: I need every String to be seperate String that is only a 100 chars long. So i will need each String in an Array or

How to create png from unicode character?

阅读更多关于 How to create png from unicode character?

问题 I have been looking far and wide on the internet for images/vectors of unicode characters in any font, and have not found any. I need image files of unicode characters for the project I am working on, where I cannot just use text. Is there a way to "convert" unicode characters from a font into an image file? Or does anyone know where I can find this? Thank you. 回答1: Try BMFont Bitmap Font Generator Supports Unicode, generates PNG images - looks like a perfect match. 来源： https://stackoverflow

What is the HTML character reference code for the percent sign (%)?

阅读更多关于 What is the HTML character reference code for the percent sign (%)?

问题 I want to use the code associated to the character % . For example when we want to write é then we code é , so what is the code for % ? 回答1: There are many possibilities: &percnt; % % A reference with all possible characters you find on the following site: http://dev.w3.org/html5/html-author/charref 回答2: For percent sign the HTML equivalent is: % You can find the HTML codes for Unicode symbols here. 来源： https://stackoverflow.com/questions/33415330/what-is-the-html-character-reference-code-for

Calculate exact character\string height in javascript

阅读更多关于 Calculate exact character\string height in javascript

问题 I'm working with canvases and i can't think of any solution, or find answer on line to my problem. I have a font that contains symbols\characters from varies sizes - heights and width. I want to draw some characters (Symbols) from the font and some on top\down of the symbol. The problem is that I can't figure out a way to have the exact height in pixels of the character that i'm drawing, and it's causes unwanted spaces between the center symbol to the one on top\down (for getting the width of

mysql varbinary vs varchar

阅读更多关于 mysql varbinary vs varchar

问题 We use varchar(255) for storing "keywords" in mysql. We are facing a problem that mysql ignores all trailing spaces for comparison purposes in "=". It does respect trailing spaces in "like" comparison, but it does not let us store same word with and without trailing spaces in a varchar column if it has a "UNIQUE" index over it. So, we are considering switching to varbinary. Can anybody suggest what could be the implications when there are multi-byte characters in column values? 回答1: Andomar,

[perl]Wide character in print报错

阅读更多关于 [perl]Wide character in print报错

【推荐】2019 Java 开发者跳槽指南.pdf(吐血整理) >>> 用perl写文本处理程序，或者写服务器端脚本的时候，常常会遇到“Wide character in print” 的警告或者错误。 这是因为在程序中处理中文等宽字符时，perl不能识别要处理的内容。 首先要知道perl只能处理两种编码：ascii码和utf-8。ascii码是很少的，像中文、日文、韩文等字符要想能被perl处理，只能用 utf-8编码方式。字符串在perl内部的存储格式如下图： 当flag是1的时候，perl就会把那个字符串当做utf-8编码的字符来处理；如果是0，perl就不能认知字符串中除了 ascii码之外的字符，这个时候，就会报出“Wide character in print”的警告或者错误。 举个例子，你要程序中处理‘当历史成为历史’这个字符串，如果你的程序文件是utf-8编码的话，一般情况下直接处理就行了，因为这时字符串的utf8-flag是打开的。如果你的程序文件是gb2312的话，那么你就需要把那个字符串的utf8-flag打开。但是，一般还会有这样的问题，因为这个字符串是gb2312编码的，所以你要做两件事情：将字符串的编码转为utf-8和打开utf8-flag。 use Encode;