大约有 44,000 项符合查询结果（耗时：0.0650秒） [XML]
How can I echo HTML in PHP?
... separate from the coding (business logic). It also makes the code cleaner and easier to maintain in the long run.
If you have any more questions feel free to leave a comment.
Further reading is available on these things in the PHP documentation.
NOTE: PHP short tags <? and ?> are discouraged...
curl_exec() always returns false
...
Error checking and handling is the programmer's friend. Check the return values of the initializing and executing cURL functions. curl_error() and curl_errno() will contain further information in case of failure:
try {
$ch = curl_init(...
SBT stop run without exiting
...
with kill from the command line, or in the Task Manager (Windows), or Force Quit or Activity Monitor (Mac OS X), etc.
– Seth Tisue
Mar 21 '11 at 16:45
...
Change R default library path using .libPaths in Rprofile.site fails to work
...dows, not as an administrator. When I install a package, the following command doesn't work:
15 Answers
...
Worst security hole you've seen? [closed]
...opping cart. The software properly calculated the total cost as .1 * cost, and the human packing the order simply glossed over the odd "." in front of the quantity to pack :)
share
...
When is the finalize() method called in Java?
... be called on the main class if the main class creates a non-daemon thread and then returns?
– Tom G
Feb 15 '14 at 21:24
3
...
Difference between Git and GitHub
... Most notably, GitHub is a consequence of the existance of git and not the only hosting service.
– Jonas Schäfer
Nov 10 '12 at 11:28
83
...
What does void* mean and how to use it?
...d *func(void* i); , what does this void* mean here for the function name and for the variable type, respectively?
10 Ans...
std::back_inserter for a std::set?
...f an element is determined by the comparator of the set. Use std::inserter and pass it .begin():
std::set<int> s1, s2;
s1 = getAnExcitingSet();
transform(s1.begin(), s1.end(),
std::inserter(s2, s2.begin()), ExcitingUnaryFunctor());
The insert iterator will then call s2.insert(s2....
Is \d not supported by grep's basic expressions?
...
grep's default mode is (iirc) POSIX regex, and \d is pcre. You can either pass -P to gnu grep, for perl-like regexps, or use [[:digit:]] instead of \d.
daenyth@Bragi ~ $ echo 1 | grep -P '\d'
1
daenyth@Bragi ~ $ echo 1 | grep '[[:digit:]]'
1
...