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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
... printf("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 ...
CGRidCtrl控件 学习心得 - C/C++ - 清泛网 - 专注C/C++及内核技术
...rl。为了使用它，你可以使用微软的VC++的对话框编辑器，把一个普通的控件放在对话框上，并且输入"MFCGridCtrl"（不包括引号）作为类名。Grid的子类使用DDX机制（可以通过ClassWizard来进行默认设置），使用DDX_GridControl函数代替DDX_C...
How to sort my paws?
...y...)
problems = False
last = paw_labels[0]
for paw, dy, dx in zip(paw_labels[1:], dy, dx):
# Going from a left paw to a right, dy should be negative
if last.startswith('L') and paw.startswith('R') and (dy > 0):
problems = True
break
# G...
How do I print a list of “Build Settings” in Xcode project?
...E_SUBDIR .
JAVA_USE_DEPENDENCIES YES
JAVA_ZIP_FLAGS -urg
JIKES_DEFAULT_FLAGS "+E +OLDCSO"
KEEP_PRIVATE_EXTERNS NO
LD_GENERATE_MAP_FILE NO
LD_MAP_FILE_PATH "/Users/username/Libr...
How do we control web page caching, across all browsers?
...nswer are targeted on "web pages" (HTML pages), not "file downloads" (PDF, zip, Excel, etc). You'd better have them cached and make use of some file version identifier somewhere in URI path or querystring to force a redownload on a changed file. When applying those no-cache headers on file downloads...
Logical operators for boolean indexing in Pandas
...]
values = [5, 5]
m = np.logical_and.reduce([op(df[c], v) for op, c, v in zip(ops, cols, values)])
m
# array([False, True, False, True, False])
df[m]
A B C
1 3 7 9
3 4 7 6
1 - I know I'm harping on this point, but please bear with me. This is a very, very common beginner's mistake,...
For-each over an array in JavaScript
... available on an array. Methods of interest might be:
forEach
map
filter
zip
reduce
every
some
The standard way to iterate an array in JavaScript is a vanilla for-loop:
var length = arr.length,
element = null;
for (var i = 0; i < length; i++) {
element = arr[i];
// Do something wit...
Is it possible to apply CSS to half of a character?
...w on GitHub as a Plugin!
Feel free to fork and improve.
Demo | Download Zip | Half-Style.com (Redirects to GitHub)
Pure CSS for a Single Character
JavaScript used for automation across text or multiple characters
Preserves Text Accessibility for screen readers for the blind or visually
impair...
Programmer Puzzle: Encoding a chess board state throughout a game
...
and gzip the result afterwards (if the headers won't increase the result) ;^)
– Toad
Dec 2 '09 at 8:23
...
Logging best practices [closed]
...will notice the file, and then it can take action, e.g. compress it (e.g. 7zip) and email it or otherwise make available.
Many systems these days incorporate automated reporting of failures to a central server (after checking with users, e.g. for privacy reasons).
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Q: What tools to you u...