symbols

问题 I have created an XHTML file with inline SVG. It does not display when tested as .XHTML but it does when tested as HTML. I have scoured the internet and believe I have the proper namespaces, etc. specified however, I'm stumped as to why it's not displaying. Please help me understand what I'm doing wrong. Note: I have also tried with or without xlink and I see no change (however I require xlink as I need safari support). Thanks in advance for your help! Example: index.xhtml <?xml version="1.0"

问题 Take this file as example,there are many non-extern structures like: struct list_head source_list; How can it work when this header file is included by more than one compile units? There should be error reporting that the same symbol is defined twice,right? 回答1: Technically there should, but that usage has been around for years and is impossible to eradicate (it's been tried; every so often some vendor decides to make it an error, and reverts after the first hundred or so bug reports).

问题 How can i extract all words start from symbol '$' from a text file? File a (ascii) --> @ExtendedAttr = nvp_add(@ExtendedAttr, "severity", $severity, "description", $description, "eventID", $eventID, "eventURL", $eventURL, "alertLevel", $alertLevel, "eventStart", $eventStart, "eventSourceCount", $eventSourceCount, "eventSourceTable", $eventSourceTable, "eventDestCount", $eventDestCount) I want the output to be like this (all in new line) : $severity $description $eventID $eventURL $alertLevel

问题 I been reading and trying to understand how symbols get resolved within a shared library in Linux. So here is a description of what I am faced with. I am using an application ( APP ) that can load user created shared libraries to add features. I have two such libraries, LIB_A.so and LIB_B.so that perform separate things and do not depend on another to work. They are independently compiled and based on the compiler arguments ( -fPIC ), will seem it will make the symbols interposable (from my

问题 i have an windows mobile application written in c# compact framework which use barcode scanner. In fact that i need to keep my app device independent i don't use constructor's api but i handle scanner through events like form_keypress using an preamble. It is a really good way for any device until i tried to install in motorola mc65 with windows 6.5.3 which is configured to switch off datawedge utility after some time of idling. The weird is that in other motorola devices like mc55 or es400

问题 I would like to remove all the rows from a dataframe named mydata where the column named first contains a "+". What is the correct command for this in R? Here is what my dataframe looks like: session first last city 1 9cf571c8faa67cad2aa9ff41f3a26e38 cat biddix fresno 2 e30f853d4e54604fd62858badb68113a caleb+joey amos 3 2ad41134cc285bcc06892fd68a471cd7 daniel folkers 4 2ad41134cc285bcc06892fd68a471cd7 daniel folkers 5 63a5e839510a647c1ff3b8aed684c2a5 charles pierce flint 6

问题 I woult like to insert a legent to my plot. I tried this with the following code: plot(1:4) legend("topleft",legend=expression(paste(theta[1]==7%*%10^-4,sep=" ",theta[2]==-14%*%10^-4), paste(theta[1]==0,sep=" ",theta[2]==0)),bty="n",cex=1.2) Unfortunately, as you can see, the symbols of the legend are not not aligned in the vertical sence. So theta_2 in the second line appears under the value of theta_1 of the first line. How can I change the code, so that the symbols are well aligned? 回答1:

问题 I have successfully been calling Unicode characters in Java. However, I cannot call this particular symbol of a pedestrian... http://www.fileformat.info/info/unicode/char/1f6b6/index.htm I am following the directions on the website but it displays an empty block: JOptionPane.showMessageDialog(null,"\uD83D\uDEB6"); What am I doing wrong? 回答1: This is a font issue. The font(s) being used do(es) not contain a glyph for the character, hence the rendering software displays a generic symbol like a

问题 I'm struggling in understanding when to use the ampersand in passing symbols to functions representing a method. For example, If I wanted to calculate the sum of the range 1..10, I could do the following: (1..10).inject(:+) This originally lead me to believe that if you wanted to pass a symbol to define a method to "Magically" be used in the function, you would pass the function name as a symbol. But then I see something like this in rails: total = Product.find(product_list).sum(&:price) If I

问题 I am having some trouble loading my Redis module. I am just copying the example from https://redis.io/topics/modules-intro, but I stripped it down. #include "redismodule.h" #include <stdlib.h> int RedisModule_OnLoad(RedisModuleCtx *ctx, RedisModuleString **argv, int argc) { if (RedisModule_Init(ctx,"avromodule",1,REDISMODULE_APIVER_1) == REDISMODULE_ERR) return REDISMODULE_ERR; return REDISMODULE_OK; } This is saved in avromodule.cpp. I compile it using the following: g++ -shared -fPIC -o