大约有 40,000 项符合查询结果（耗时：0.0617秒） [XML]
C++实现一款简单完整的聊天室服务器+客户端 - C/C++ - 清泛网 - 专注C/C++及内核技术
...rintf("Usage: %s IPAddress PortNumber/n",argv[0]);
exit(-1);
}
//把字符串的IP地址转化为u_long
unsigned long ip;
if((ip=inet_addr(argv[1]))==INADDR_NONE){
printf("不合法的IP地址：%s",argv[1]);
exit(-1);
}
//把端口号转化成整数
short port;
if((port = a...
Linux下部署企业级邮件服务器(postfix + dovecot + extmail) - 开源 & Gith...
...在其后的每个行前多置一个空格即可；postfix会把第一个字符为空格或tab的文本行视为上一行的延续；
5、启动postfix,连接发信
四、为postfix开启基于cyrus-sasl认证功能
1、检查postfix是否支持cyrus-sasl认证
postconf -a
2、配置...
NSRange to Range
...
juancazalla
9461010 silver badges1616 bronze badges
answered Oct 22 '14 at 21:46
Alex PretzlavAlex Pretzlav
15....
u'\ufeff' in Python string
...BOM, and is used to tell the difference between big- and little-endian UTF-16 encoding. If you decode the web page using the right codec, Python will remove it for you. Examples:
#!python2
#coding: utf8
u = u'ABC'
e8 = u.encode('utf-8') # encode without BOM
e8s = u.encode('utf-8-sig') # ...
How many bytes does one Unicode character take?
...s information. Those are the various unicode encodings, such as utf-8, utf-16le, utf-32 etc. They are distinguished largely by the size of of their codeunits. UTF-32 is the simplest encoding, it has a codeunit that is 32bits, which means an individual codepoint fits comfortably into a codeunit. The ...
What do numbers using 0x notation mean?
...
Literals that start with 0x are hexadecimal integers. (base 16)
The number 0x6400 is 25600.
6 * 16^3 + 4 * 16^2 = 25600
For an example including letters (also used in hexadecimal notation where A = 10, B = 11 ... F = 15)
The number 0x6BF0 is 27632.
6 * 16^3 + 11 * 16^2 + 15 * 16...
RGB to hex and hex to RGB
...d zero padding:
function componentToHex(c) {
var hex = c.toString(16);
return hex.length == 1 ? "0" + hex : hex;
}
function rgbToHex(r, g, b) {
return "#" + componentToHex(r) + componentToHex(g) + componentToHex(b);
}
alert(rgbToHex(0, 51, 255)); // #0033ff
Converting t...
What is a “surrogate pair” in Java?
...to a means of encoding Unicode characters with high code-points in the UTF-16 encoding scheme.
In the Unicode character encoding, characters are mapped to values between 0x0 and 0x10FFFF.
Internally, Java uses the UTF-16 encoding scheme to store strings of Unicode text. In UTF-16, 16-bit (two-byte...
What are the differences between json and simplejson Python modules?
...subclass of ValueError
– elhefe
Apr 16 '13 at 17:16
30
I disagree with the above answer assuming ...
What is Unicode, UTF-8, UTF-16?
What's the basis for Unicode and why the need for UTF-8 or UTF-16?
I have researched this on Google and searched here as well but it's not clear to me.
...