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20个命令行工具监控 Linux 系统性能 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...内置的 HTTP web 服务去定期收集系统和网络信息并显示成图片。它可以监视系统的平均负载使用、内存的分配、磁盘驱动器、系统服务、网络端口、邮件统计(Sendmail、Postfix、Dovecot 等等)、MYSQL 数据库等等更多的服务。它的主要...
iOS开发过程中的各种tips - 更多技术 - 清泛网 - 专注C/C++及内核技术
...NSLog(@"%@",[dateFormatter stringFromDate:[NSDate date]]);
20.加载大量图片的时候,可以使用
NSString *imagePath = [[NSBundle mainBundle] pathForResource:@"icon" ofType:@"png"];
UIImage *myImage = [UIImage imageWithContentsOfFile:imagePath];
21.有时候在iPhone游戏中,既要...
application/x-www-form-urlencoded or multipart/form-data?
...encoding types in an API context (no browser involved)? This might e.g. be based on:
6 Answers
...
How to hash a password
... salt+hash into a string for storage
string savedPasswordHash = Convert.ToBase64String(hashBytes);
DBContext.AddUser(new User { ..., Password = savedPasswordHash });
STEP 5 Verify the user-entered password against a stored password
/* Fetch the stored value */
string savedPasswordHash = DBContex...
What is the list of possible values for navigator.platform as of today? [closed]
...e best way to order these is. For now I divided them into a few categories based on operating system or device brand and listed additional information and release dates where applicable.
Android
It's really hard to test for Android devices. Android devices will return Android just as often as some v...
Convert SVG image to PNG with PHP
...t involves a dynamically generated map of the US coloring different states based on a set of data.
8 Answers
...
Best way to use PHP to encrypt and decrypt passwords? [duplicate]
...PT_RIJNDAEL_128, MCRYPT_MODE_CBC),
MCRYPT_DEV_URANDOM
);
$encrypted = base64_encode(
$iv .
mcrypt_encrypt(
MCRYPT_RIJNDAEL_128,
hash('sha256', $key, true),
$string,
MCRYPT_MODE_CBC,
$iv
)
);
To Decrypt:
$data = base64_decode($encrypted);
$i...
base64 encoded images in email signatures
... email clients. For email purposes be sure to read Shadow2531's answer.
Base-64 data is legal in an img tag and I believe your question is how to properly insert such an image tag.
You can use an online tool or a few lines of code to generate the base 64 string.
The syntax to source the image f...
How can I hash a password in Java?
I need to hash passwords for storage in a database. How can I do this in Java?
13 Answers
...
Turn a string into a valid filename?
...trings as file names? If human readability is not a factor I would go with base64 module which can produce file system safe strings. It won't be readable but you won't have to deal with collisions and it is reversible.
import base64
file_name_string = base64.urlsafe_b64encode(your_string)
Update:...