quotes

问题 Can anyone explain how to make this code work? echo '<div id="panel1-under">Welcome <?php echo "$_SESSION['username']"; ?></div>'; I've tried removing the single quotes ( echo '<div id="panel1-under">Welcome <?php echo "$_SESSION[username]"; ?></div>'; ), but it doesn't work. 回答1: echo "<div id=\"panel1-under\">Welcome ".$_SESSION['username']."</div>"; or echo '<div id="panel1-under">Welcome '.$_SESSION['username'].'</div>'; Quick Explain : You don't have to reopen the tags inside a echo

问题 For example: jon.o'conner@example.com ? 回答1: Yes , jon.o'conner@example.com is a valid email address according to RFC 5322. From the Email address article at wikipedia (Syntax section): The local-part of the email address may use any of these ASCII characters: Uppercase and lowercase English letters (a–z, A–Z) Digits 0 to 9 Characters ! # $ % & ' * + - / = ? ^ _ ` { | } ~ Character . (dot, period, full stop) provided that it is not the first or last character, and provided also that it does

问题 I am trying to execute the following line in command prompt: curl -X POST -d '{ "method" : "account_info", "params" : [ { "account" : "rHb9CJAWyB4rj91VRWn96DkukG4bwdtyTh"} ] }' http://s1.ripple.com:51234 However, I get the following: curl: (6) Could not resolve host: method curl: (7) Failed connect to :80; No error curl: (6) Could not resolve host: account_info, curl: (6) Could not resolve host: params curl: (7) Failed connect to :80; No error curl: (3) [globbing] illegal character in range

问题 I have a long list of names that I need to have quotes around (it can be double or single quotes) and I have about 8,000 of them. I have them in Excel without any quotes and I can copy all of the names and paste them no problem but there are still no quotes. I have looked and looked for an Excel formula to add quotes to the name in each row but I have had no luck. I have also tried some clever find and replace techniques but no have worked either. The format I am looking for is this: "Allen"

问题 I want to call fn:replace inside EL inside c:out to replace quote caracters. The following does not work <c:out value="${fn:replace(userName,'"','\\"')}"/> because XML parser stops at first double quote and sees no c:cout tag termination (JSP compilation stage error). The following <c:out value="${fn:replace(userName,'"','\\"')}"/> does not work, probably because replace function does not see actual quote character. 回答1: Parameterize them with <c:set> . <c:set var="search" value='"' /> <c:set

问题 I'm trying to do something in bash with sed that is proving to be extremely difficult. I have a bash script that takes as its first argument a date. The code want to change a line in a text file to include the passed date. Here's the code #!/bin/bash cq_fname="%let outputfile="/user/cq_"$1".csv";" sed "29s/.*/\"$ct_fname\"/" file1.sas > file2.sas This script fails on the third line, I get something about a garbled command. Does anybody know a clever way to get this to work? How can I get a

问题 My string has double quotes in it, in C# I would do: string blah = @"this is my ""text"; how would I do that in Java? 回答1: No. Such a feature is not available in Java. From the Sun docs: When an escape sequence is encountered in a print statement, the compiler interprets it accordingly. For example, if you want to put quotes within quotes you must use the escape sequence, \", on the interior quotes. To print the sentence She said "Hello!" to me. you would write System.out.println("She said \

问题 Suppose I have a #!/bin/sh script which can take a variety of positional parameters, some of which may include spaces, either/both kinds of quotes, etc. I want to iterate "$@" and for each argument either process it immediately somehow, or save it for later. At the end of the script I want to launch (perhaps exec ) another process, passing in some of these parameters with all special characters intact. If I were doing no processing on the parameters, othercmd "$@" would work fine, but I need

问题 I have an onclick event that depends on the state of a variable. So I need to do something like onclick="#{object.isEnabled ? 'ch.my.js_method('#{object.property}'); return false;' : 'return false;'" The problem is, that I can't use ' inside of the onclick. How can I escape the quotes inside of the EL? 回答1: You can escape them with \ or \\ , but rules differ per EL implementation, because it isn't clear cut in EL spec (Oracle's EL impl needs single backslash, but Apache needs double backslash

问题 i have vlc (program to reproduce videos) if i type in a shell: /home/vlc "/home/my movies/the movie i want to see.mkv" it opens up an reproduces the movie. however, when I run the following program: #include <unistd.h> int main(void) { execl("/home/vlc", "/home/my movies/the movie i want to see.mkv",NULL); return 0; } vlc opens up but doesn't reproduce anything. How can I solve this? Things I tried: I guessed execl("/home/vlc", "/home/my movies/the movie i want to see.mkv",NULL); was