大约有 22,000 项符合查询结果（耗时：0.0228秒） [XML]
Remove all special characters from a string [duplicate]
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This should do what you're looking for:
function clean($string) {
$string = str_replace(' ', '-', $string); // Replaces all spaces with hyphens.
return preg_replace('/[^A-Za-z0-9\-]/', '', $string); // Removes special chars.
}
Usage:
echo clean('a|"bc!@£de^&$f g');
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Hiding user input on terminal in Linux script
... read's default delimiter is -d $'\n'. The if-statement to break on a nul string, which happens on a newline, is what allows them to finish the password.
– SiegeX
Nov 30 '10 at 18:25
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Split column at delimiter in data frame [duplicate]
...E)) is 1 -- as the docs say: "...but if there is a match at the end of the string, the output is the same as with the match removed." As @YuShen says, this solution will "recycle". For me, I just wanted empty spaces, not recycling.
– The Red Pea
Oct 26 '15 at 2...
Allowed characters in filename [closed]
...t correct. Linux doesn't allow /. Windows doesn't allow backslash and some strings (e.g. CON).
– kgadek
Mar 23 '17 at 17:42
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How to display count of notifications in app launcher icon [duplicate]
...iz launcher
public static void setBadge(Context context, int count) {
String launcherClassName = getLauncherClassName(context);
if (launcherClassName == null) {
return;
}
Intent intent = new Intent("android.intent.action.BADGE_COUNT_UPDATE");
intent.putExtra("badge_count...
Undefined, unspecified and implementation-defined behavior
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p[5] = 'w';
std::cout << p;
}
The variable p points to the string literal "hello!\n", and the two assignments below try to modify that string literal. What does this program do? According to section 2.14.5 paragraph 11 of the C++ standard, it invokes undefined behavior:
The effect o...
Whitespace Matching Regex - Java
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Yeah, you need to grab the result of matcher.replaceAll():
String result = matcher.replaceAll(" ");
System.out.println(result);
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Boost.Asio的简单使用(Timer,Thread,Io_service类) - C/C++ - 清泛网 - 专注C/C++及内核技术
...时间服务器
#include <ctime>
#include <iostream>
#include <string>
#include <asio.hpp>
using asio::ip::tcp;
我们先定义一个函数返回当前的时间的string形式.这个函数会在我们所有的时间服务器示例上被使用.
std::string make_daytime_string()...
UUID max character length
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Section 3 of RFC4122 provides the formal definition of UUID string representations. It's 36 characters (32 hex digits + 4 dashes).
Sounds like you need to figure out where the invalid 60-char IDs are coming from and decide 1) if you want to accept them, and 2) what the max length of...
How to increment a pointer address and pointer's value?
...str)
{
cout<<*str<<endl; // printing the string
*str++; // incrementing the address(pointer)
// check above about the prcedence and associativity
}
free(str[0]);
free(str[1]);
fr...