大约有 23,000 项符合查询结果（耗时：0.0250秒） [XML]
Why does base64 encoding require padding if the input length is not divisible by 3?
...d sequence.
However, padding is useful in situations where base64 encoded strings are concatenated in such a way that the lengths of the individual sequences are lost, as might happen, for example, in a very simple network protocol.
If unpadded strings are concatenated, it's impossible to recover...
Is “argv[0] = name-of-executable” an accepted standard or just a common convention?
...1 states (my emphasis):
If the value of argc is greater than zero, the string pointed to by argv[0] represents the program name; argv[0][0] shall be the null character if the program name is not available from the host environment.
So no, it's only the program name if that name is available. A...
What is the best way to check for Internet connectivity using .NET?
...I think this would be efficient.
try {
Ping myPing = new Ping();
String host = "google.com";
byte[] buffer = new byte[32];
int timeout = 1000;
PingOptions pingOptions = new PingOptions();
PingReply reply = myPing.Send(host, timeout, buffer, pingOptions);
return (reply.S...
Regular expressions in C: examples?
...egular expression library isn't too difficult to crash given certain input strings and certain regular expressions that "almost" match or involve a lot of special characters
– bdk
Jul 6 '09 at 2:16
...
Dokan虚拟磁盘开发实战 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...$ENDIF}
type
TMirrorDrive = class(TThread)
protected
FRootDirectory: string;
FDokanOperations: TDokanOperations;
FDokanOptions: TDokanOptions;
{$IFNDEF CONSOLE}
FHandle: THandle;
{$ENDIF}
procedure Execute; override;
public
constructor Create(const ADirectory: string; ADrive: WideChar;...
C语言结构体里的成员数组和指针 - c++1y / stl - 清泛IT社区，为创新赋能！
...下，改成可以运行的了）：#include <stdlib.h>
#include <string.h>
struct line {
int length;
char contents[0]; // C99的玩法是：char contents[]; 没有指定数组长度
};
int main(){
int this_length=10;
struct line ...
PHP - iterate on string characters
Is there a nice way to iterate on the characters of a string? I'd like to be able to do foreach , array_map , array_walk , array_filter etc. on the characters of a string.
...
How to extract year and month from date in PostgreSQL without using to_char() function?
...
what are you trying to do? Just get a string? Then use to_char function with a date format you need postgresql.org/docs/8.2/static/functions-formatting.html
– MK.
Apr 24 '17 at 17:22
...
Android: TextView automatically truncate and replace last 3 char of String
If a String is longer than the TextView 's width it automatically wraps onto the next line. I can avoid this by using android:singleLine (deprecated) or by setting android:inputType="text" . What I need now is something that replaces the last 3 characters of my String with " ... ". Since I'm...
What differences, if any, between C++03 and C++11 can be detected at run-time?
...isCpp0x() {
return (sizeof c::a()) == sizeof(b);
}
Also, the fact that string literals do not anymore convert to char*
bool isCpp0xImpl(...) { return true; }
bool isCpp0xImpl(char*) { return false; }
bool isCpp0x() { return isCpp0xImpl(""); }
I don't know how likely you are to have this work...