faster, has a short mount time, and uses less memory. (3) cramfs:compressed ROM File System Cramfs is the founder of Linux Linustorvalds, a read-only compressed file system involved in the development. It is also based on the MTD driver. In the Cramfs file system, each page (4KB) is individually compressed and can be accessed randomly, with a compression ratio of up to 2:1, which saves a large amount of flash storage space for the embedded system, allowing the system to store the same files th
If you want to associate a specified window, you can use the target attribute of the
The previous link opens a new window named review. The following links use JavaScript to produce the same effect:
Onclick = "window. Open ('HTTP: // www.intel.com/', 'review'); Return false"> intel
As you can see, it is very easy to assign a name to a new window. However, what if I name an existing window or a window generated by a user?
The name attribute of the window object allows you to set the name of a
# create a password manager 6 7 password_mgr = urllib.request.HTTPPasswordMgrWithDefaultRealm() 8 9 # Add the username and password.10 11 # If we knew the realm, we could use it instead of None.12 13 top_level_url = "https://www.python.org/"14 15 password_mgr.add_password(None, top_level_url, 'rekfan', 'xxxxxx')16 17 handler = urllib.request.HTTPBasicAuthHandler(password_mgr)18 19 # create "opener" (OpenerDirector instance)20 21
Super.ontouchevent (EV) is returned, the default processing logic is the same as the return false.Service, two startup modes and features, how to communicate with activity
Reference Blog, article: Http://www.jianshu.com/p/2fb6eb14fdec
= = Use start to start the service = =Steps:
To define a class to inherit a service
Configure the service in the Manifest.xml file
Start with the StartService (Intent) method of the context
Call the StopService (Intent) method to
multiple accesses to the same IP over a short period of time
(1) Delayed access time ( not recommended )(2) AgentThe ① parameter is a dictionary {' type ': ' proxy IP: port number '}Proxy_support = Urllib.request.ProxyHandler ({})② customizing, creating a openerOpener = Urllib.request.build_opener (proxy_support)③A. installation openerUrllib.request.install_opener (opener)B. call openerOpener.open (URL)(direct search for proxy IP is ok)Import Ur
to reach a server. ')
Print (' Reason: ', E.reason)
elif hasattr (E, ' Code '):
print (' The server couldn ' t fulfill the request. '
) Print (' Error code: ', E.code)
else:
print ("good!")
Print (Response.read (). Decode ("UTF8"))
8, HTTP authentication
#! /usr/bin/env python3
Import urllib.request
# Create a password manager
password_mgr = Urllib.request.HTTPPasswordMgrWithDefaultRealm ()
# ADD the username and password.
# If We knew the realm, we could use it instead of None.
To
) ‘
Referrer=‘http://www.xxxxxx.com/‘
Postdata = {‘username‘ : ‘qiye’,
‘password‘ : ‘qiye_pass’}
# Write user_agent, referer to header information
Headers={‘User-Agent’:user_agent,‘Referer‘:referer}
Data = urllib.urlencode(postdata)
Req = urllib2.Request(url, data,headers)
Response = urllib2.urlopen(req)
Html = response.read()
3 Cookie Processing
Urllib2 the processing of cookies is also automatic, using the Cookiejar function for the management of cookies, if you need to get th
, we can use Window.opener (omit write as opener) to reference a.html, including a.html document and other objects, manipulate a.html content.If this reference fails, then NULL is returned. Therefore, before calling the opener object, you must first determine whether the object is null, otherwise the "object is empty or does not exist" JS error.Example--------------------------------Opener.html-------------
dependent on the amount of available memory. you can allocate additional memory, outside of the 32 MB that is assigned to each slot, by using memory-mapped files or by calling the virtualalloc function.
The following authentication shows how memory is allocated in the Windows CE address space.
When a process initializes, the OS maps the following DLLs and memory components:
Some execute-in-place (xip) Dynamic-Link Libraries (DLLs)
Some read/writ
system stores data in Compressed Mode and decompress the data during running. Therefore, applications cannot run in xip mode. All applications must be copied to ram for running, however, this does not mean that the ram space required by ramfs is larger, because cramfs uses paging compression to store files. When reading files, it will not consume too much memory at once, only allocate memory for the part currently actually read. No memory space is al
I was about to post a post for a long time, but I have been hesitant to post a post from king_sundi. In contrast, my summary is more practical, basically, you can follow this step. I have tried it for a few of my friends who can solve this problem at first.Summary of xip implementation.Step 1: Modify the config. bib file. The size of the kernel subset xipkernel is adjusted according to the actual size of xipkernel. Bin compiled by yourself,Xipkernel b
, while the latter supports large pages (2 kb) NAND Flash. In addition, yaffs2 significantly improves the memory space usage, garbage collection speed, and read/write speed.
(3) Cramfs: Compressed ROM File System
Cramfs is a read-only compressed file system developed by Linux founder Linus Torvalds. It is also based on the MTD driver.
In the cramfs file system, each page (4 kb) is compressed separately and can be accessed by random pages. The compression ratio is as high as, saving a lot of Flas
This article provides a summary of six php methods for obtaining IP addresses, which are simple and complex. you can choose your preferred method based on your project requirements. Code 1:
function getip() { static $ip = ''; $ip = $_SERVER['REMOTE_ADDR']; if(isset($_SERVER['HTTP_CDN_SRC_IP'])) { $ip = $_SERVER['HTTP_CDN_SRC_IP']; } elseif (isset($_SERVER['HTTP_CLIENT_IP']) preg_match('/^([0-9]{1,3}\.){3}[0-9]{1,3}$/', $_SERVER['HTTP_CLIENT_IP'])) { $ip = $_SERVER['HTTP_CLIENT_IP'];
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