decode

oracle sql常用查询nvl,nvl2,decode区别及使用方法 1，NVL( E1, E2) 如果E1为NULL，则NVL函数返回E2的值，否则返回E1的值，如果两个参数都为NULL ，则返回NULL。 select nvl(null, 1) from dual; --1 select nvl(2, 1) from dual; --2 select nvl(null, null) from dual; --null 2，nvl2 (E1, E2, E3) 的功能为：如果E1为NULL，则函数返回E3，否则返回E2 select nvl2(null, 1, 3) from dual; --3 ,3，decode(E1, E2, E3, E4, E5, E6 ) 如果E1==E2，则值E3，如果E1==E4，则值E5；否则E5 select decode(1, 1, 2, 3, 4, 5) from dual; --2 select decode(3, 1, 2, 3, 4, 5) from dual; --4 select decode(2, 1, 2, 3, 4, 5) from dual; --5 来源： https://www.cnblogs.com/lidelin/p/11771861.html

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 know this looks embarrassingly easy, and I guess the problem is that I just don't have a clear understanding of all this bytes-str-unicode (and encoding-decoding , speaking frankly) stuff yet. I've been trying to get my working code to run on Python 3. The part I'm stuck with is when I parse an XML with lxml and decode a base64 string that is in that XML. The code now works in the following manner: I retrieve the binary data with an XPath query '.../binary/text()' . This produces a one-element list containing a lxml.etree.

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: Here's my current script that does the API calling: $client = "55447265ed444bb5b768ecb0765ba9cb"; $query = $_POST['q']; $clnum = mt_rand(1,3); $api = "https://api.instagram.com/v1/tags/".$query."/media/recent?client_id=".$client; function get_curl($url) { if(function_exists('curl_init')) { $ch = curl_init(); curl_setopt($ch, CURLOPT_URL,$url); curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); curl_setopt($ch, CURLOPT_HEADER, 0); curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0); curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0); $output = curl_exec($ch);

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 created a sample application in Qt where i have to display camera stream in a 2x2 grid. I am using libvlc to play the stream and i am able to display the video as well. But i am facing few issues Vlc is creating a separate window to render the video. Its not displayed on the area provided by Qt Application. Here is my code void playerView::createPlayer() { const char *const vlc_args[] = { "--avcodec-hw=any", "--plugin-path=C:\QtSDK\vlc-2.2.1\plugins" }; vlcinstance = libvlc_new(sizeof(vlc_args) / sizeof(vlc_args[0]), vlc_args); const

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'm trying to Decode XML from body a html response. =>I saved this response body as string to a Variable and successfully decoded Using xml.Unmarshal Function .Code for that : err = xml.Unmarshal([]byte(outs), &v) if err != nil { fmt.Printf("error is here: %v", err) return } So I think problem is NOT with actual Content of Response body. Now My Actual Code : req1, err := http.NewRequest("GET", concat([]string{domain, defects_link}), nil) error_handler(err) req1.Close = true //I tried with and without this line resp1, err := client.Do(req1)

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 am currently encoding a password. I have to decode the password. Here is the code to encode. I am trying to get the original password compare it. I have researched about MessageDigest that says it is a one-way method. Not sure how to get the original message. We have a decode method but it isn't giving me the original password - Base64.decode. public static synchronized String getMD5_Base64(String input) { if (!isInited) { isInited = true; try { digest = MessageDigest.getInstance("MD5"); } catch (Exception ex) { } } if (digest == null)

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: Hey I am not sure why this keeps coming up every time I select an image in my gallery? Here is the code: if (v == uploadImageButton) { // below allows you to open the phones gallery Intent intent = new Intent(); intent.setType("image/*"); intent.setAction(Intent.ACTION_GET_CONTENT); startActivityForResult( Intent.createChooser(intent, "Complete action using"), 1); } public void onActivityResult(int requestCode, int resultCode, Intent data) { if (resultCode == RESULT_OK && requestCode == 1 && null != data) { // Bitmap photo = (Bitmap) data

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: Is there any function that converts an escaped Url string to its unescaped form? System.Web.HttpUtility.UrlDecode() can do that job but I don't want to add a reference to System.Web.dll . Since my app is not a web application, I don't want to add a dependency for only using a function in an assembly. UPDATE: Check Rick Strahl's blog post about the same issue. 回答1: EDIT: Use the static method Uri.UnescapeDataString() to decode your URLs: Encoded: http%3a%2f%2fwww.google.com%2fsearch%3fhl%3den%26q%3dsomething%20%2323%26btnG%3dGoogle%2bSearch

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 am trying to decipher how to use /proc/pid/pagemap to get the physical address of a given set of pages. Suppose from the /proc/pid/maps, I get the virtual address afa2d000-afa42000 which corresponds to the heap. My question is how do I use this info to traverse the pagemap file and find the physical page frames correspond to the address afa2d000-afa42000. The /proc/pid/pagemap entry is in binary format. Is there any tools to help parsing of this file? 回答1: Try this http://www.eqware.net/Articles/CapturingProcessMemoryUsageUnderLinux/ It

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've started getting a DEBUG/skia(xxxx): --- decoder->decode returned false issue on a few profile images from Facebook that I use in ImageViews. Most work perfectly, but every once in a while I discover one that never works. I am compiling my application against Android 1.6 for backward compatibility reasons. I did some digging and discovered a number of threads on the issue. I'm already using the FlushedInputStream discussed here: http://code.google.com/p/android/issues/detail?id=6066 Bitmap b = BitmapFactory.decodeStream(new