大约有 3,300 项符合查询结果（耗时：0.0294秒） [XML]
Why use sprintf function in PHP?
...nts to display. e.g. sprintf('%2$s %1$s, my name is also %1$s.', 'World', 'Hello'); resulting in Hello World, my name is also World.
– Will B.
May 17 '17 at 1:41
add a comment...
Check if an apt-get package is installed and then install it if it's not on Linux
...s still present even after --purge.
I don't understand why, but with the hello package the second dpkg after apt remove shows that he package has already been removed without --purge:
dpkg-query: package 'hello' is not installed and no information is available
The documentations are also very u...
Conveniently Declaring Compile-Time Strings in C++
...it, and what it can do:
int
main()
{
constexpr str_const my_string = "Hello, world!";
static_assert(my_string.size() == 13, "");
static_assert(my_string[4] == 'o', "");
constexpr str_const my_other_string = my_string;
static_assert(my_string == my_other_string, "");
constexp...
How do I make an attributed string using Swift?
...nitialize with a string only
let attrString1 = NSAttributedString(string: "Hello.")
// Initialize with a string and inline attribute(s)
let attrString2 = NSAttributedString(string: "Hello.", attributes: [NSAttributedString.Key.myName: "A value"])
// Initialize with a string and separately declared...
How do I use the lines of a file as arguments of a command?
...to provide that specificity. The goal is to iterate over lines, right? Put Hello World on one line. You'll see it first run some_command Hello, then some_command World, not some_command "Hello World" or some_command Hello World.
– Charles Duffy
Aug 16 '19 at 2:...
Shell script to send email [duplicate]
...
Yes it works fine and is commonly used:
$ echo "hello world" | mail -s "a subject" someone@somewhere.com
share
|
improve this answer
|
follow
...
CSS Selector that applies to elements with two classes
... color: red;
}
Output on supported browsers is:
<div class="foo">Hello Foo</div> <!-- Not selected, black text [1] -->
<div class="foo bar">Hello World</div> <!-- Selected, red text [2] -->
<div class="bar">Hello Bar</div> <!-- Not s...
How to write a switch statement in Ruby
... to do a case ... when over an object's class, this will not work:
obj = 'hello'
case obj.class
when String
print('It is a string')
when Fixnum
print('It is a number')
else
print('It is not a string or number')
end
Will print "It is not a string or number".
Fortunately, this is easily solv...
Best way to create a simple python web service [closed]
...your own when it comes to making a service that actually does something.
"Hello, World!" according to web.py isn't much longer than an bare CGI version, but it adds URL mapping, HTTP command distinction, and query parameter parsing for free:
import web
urls = (
'/(.*)', 'hello'
)
app = web.ap...
Parse query string in JavaScript [duplicate]
...y variable %s not found', variable);
}
Now make a request to page.html?x=Hello:
console.log(getQueryVariable('x'));
share
|
improve this answer
|
follow
|
...