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C#对象序列化与反序列化 - 更多技术 - 清泛网移动版 - 专注C/C++及内核技术
...ement("姓名")]
public string Name;
[XmlElement("年龄")]
public int Age;
public PersonB() { }//必须提供无参构造器，否则XmlSerializer将出错
}
[XmlType("人员信息")]
public class PersonArray
{
[XmlArrayItem(typeof(PersonA)), XmlArrayItem(typeof(PersonB))]
pub...
What's the difference between eval, exec, and compile?
I've been looking at dynamic evaluation of Python code, and come across the eval() and compile() functions, and the exec statement.
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How does Google Instant work?
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Converting the first value from key u in Daniel Vassallo's answer's Ajax response gives a URL, which then leads to some (invalid) JSON. I'm not sure what this bit is for yet.
The d gives some HTML, which gets inserted into t...
What is the maximum length of a URL in different browsers?
...under 2000 characters, they'll work in virtually any combination of client and server software.
If you are targeting particular browsers, see below for more details specific limits.
Longer answer - first, the standards...
RFC 2616 (Hypertext Transfer Protocol HTTP/1.1) section 3.2.1 says
The HTTP p...
Is “double hashing” a password less secure than just hashing it once?
...s the time it takes for an attacker to try each password in their list of candidates. You can easily increase the time it takes to attack a password from hours to years.
Simple iteration is not enough
Merely chaining hash output to input isn't sufficient for security. The iteration should take pla...
How do you add an in-app purchase to an iOS application?
How do you add an in-app purchase to an iOS app? What are all the details and is there any sample code?
5 Answers
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What are the differences between virtual memory and physical memory?
...e to correspond to actual physical addresses. The operating system creates and deals with these mappings - utilizing the page table, among other data structures to maintain the mappings. Virtual memory mappings are always found in the page table or some similar data structure (in case of other imple...
Common CSS Media Queries Break Points [duplicate]
...ular layout instead. That is, gradually narrow your desktop browser window and observe the natural breakpoints for your content. It's different for every site. As long as the design flows well at each browser width, it should work pretty reliably on any screen size (and there are lots and lots of t...
What are the relative strengths and weaknesses of Git, Mercurial, and Bazaar? [closed]
What do folks here see as the relative strengths and weaknesses of Git, Mercurial, and Bazaar?
16 Answers
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Difference between “and” and && in Ruby?
What is the difference between the && and and operators in Ruby?
7 Answers
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