大约有 44,000 项符合查询结果（耗时：0.0450秒） [XML]
What to do with “Unexpected indent” in python?
... statement). All lines of code in a block must start with exactly the same string of whitespace. For instance:
>>> def a():
... print "foo"
... print "bar"
IndentationError: unexpected indent
This one is especially common when running python interactively: make sure you don't put a...
Java 256-bit AES Password-Based Encryption
...ding");
cipher.init(Cipher.DECRYPT_MODE, secret, new IvParameterSpec(iv));
String plaintext = new String(cipher.doFinal(ciphertext), "UTF-8");
System.out.println(plaintext);
Java 7 included API support for AEAD cipher modes, and the "SunJCE" provider included with OpenJDK and Oracle distribution...
Resolving a Git conflict with binary files
...intuitive - something like git resolve would be nice, but would also be an extra step ...
– VolkA
Nov 10 '08 at 20:22
add a comment
|
...
how to stop browser back button using javascript
....
the 3rd argument to history.pushState() is a url. Solutions which pass a string like 'no-back-button' or 'pagename' seem to work OK, until you then try a Refresh/Reload on the page, at which point a "Page not found" error is generated when the browser tries to locate a page with that as its Url. (...
Android TextView padding between lines
...
You can use lineSpacingExtra and lineSpacingMultiplier in your XML file.
share
|
improve this answer
|
follow
...
How can I store my users' passwords safely?
...<?php
use Netsilik/Lib/PepperedPasswords;
// Some long, random, binary string, encoded as hexadecimal; stored in your configuration (NOT in your Database, as that would defeat the entire purpose of the pepper).
$config['pepper'] = hex2bin('012345679ABCDEF012345679ABCDEF012345679ABCDEF012345679AB...
Return 0 if field is null in MySQL
...) returns expr1; otherwise it returns expr2. IFNULL() returns a numeric or string value, depending on the context in which it is used.
share
|
improve this answer
|
follow
...
Using @property versus getters and setters
... to memorize, which is significantly less useful. Axioms could be used for extrapolation, and help you approach problems no one has seen yet. It's a shame that the property feature threatens to render the idea of Pythonic axioms nearly worthless. So all we're left with is a checklist.
...
Node.js check if path is file or directory
...
The following should tell you. From the docs:
fs.lstatSync(path_string).isDirectory()
Objects returned from fs.stat() and fs.lstat() are of this type.
stats.isFile()
stats.isDirectory()
stats.isBlockDevice()
stats.isCharacterDevice()
stats.isSymbolicLink() (only valid with fs.lstat())
...
How to search file text for a pattern and replace it with a given value
... of Ruby's capabilities, and not a production-grade solution for replacing strings in files. It's prone to various failure scenarios, such as data loss in case of a crash, interrupt, or disk being full. This code is not fit for anything beyond a quick one-off script where all the data is backed up. ...