大约有 19,000 项符合查询结果（耗时：0.0202秒） [XML]
Accessing @attribute from SimpleXML
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Yes, but in a harder form
– zysoft
Sep 27 '12 at 12:23
2
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When should I use GET or POST method? What's the difference between them?
...for changing something. For example, a search page should use GET, while a form that changes your password should use POST.
Also, note that PHP confuses the concepts a bit. A POST request gets input from the query string and through the request body. A GET request just gets input from the query str...
UnicodeDecodeError, invalid continuation byte
...on Wikipedia, you’ll see that such a byte must be followed by two of the form 10xx xxxx. So, for example:
>>> b'\xe9\x80\x80'.decode('utf-8')
u'\u9000'
But that’s just the mechanical cause of the exception. In this case, you have a string that is almost certainly encoded in latin 1. ...
Regular vs Context Free Grammars
...bset of context-free grammar.
So for a palindrome for instance, is of the form,
S->ABA
A->something
B->something
You can clearly see that palindromes cannot be expressed in regular grammar since it needs to be either right or left linear and as such cannot have a non-terminal on both s...
How can I determine whether a 2D Point is within a Polygon?
...1) of infinite length.
// We want the line in linear equation standard form: A*x + B*y + C = 0
// See: http://en.wikipedia.org/wiki/Linear_equation
a1 = v1y2 - v1y1;
b1 = v1x1 - v1x2;
c1 = (v1x2 * v1y1) - (v1x1 * v1y2);
// Every point (x,y), that solves the equation above, i...
Difference between @OneToMany and @ElementCollection?
...xchange.using('gps', function() { StackExchange.gps.track('embedded_signup_form.view', { location: 'question_page' }); });
$window.unbind('scroll', onScroll);
}
};
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Validate phone number with JavaScript
... it works perfectly. It validates that the phone number is in one of these formats:
(123) 456-7890 or 123-456-7890
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Chrome Uncaught Syntax Error: Unexpected Token ILLEGAL [duplicate]
...ith it. No errors in firefox, and the script works as expected. Just using form validation
4 Answers
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Why Java needs Serializable interface?
...lization is fraught with pitfalls. Automatic serialization support of this form makes the class internals part of the public API (which is why javadoc gives you the persisted forms of classes).
For long-term persistence, the class must be able to decode this form, which restricts the changes you ca...
How to write into a file in PHP?
...e following code to write files on my web directory.
write_file.html
<form action="file.php"method="post">
<textarea name="code">Code goes here</textarea>
<input type="submit"value="submit">
</form>
write_file.php
<?php
// strip slashes before putting the form d...