When doing dealspider, you must know the charset of the page, and then convert it into a UTF-8, and finally use the regular expression of glib for matching and search. Curl itself does not provide such a function. Previously, we saw the following in
I believe you must have met, open a Web page, but show a heap of like garbled, such as "бїяазъся", "????????"? Remember the message header fields Accept-charset, accept-encoding, Accept-language, content-encoding, content-language in HTTP? And
Definitions and usageThe CharSet property stipulates the character encoding used in the external script file.
If the character encoding in the external file differs from the encoding in the main file, the CharSet attribute is used.
The default
Const
Used to define constant values that cannot be changed at run time. Once defined and cannot change its value, an error occurs if the value is changed in the program.
The code is as follows
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CALSS
In php5, const, define, and static 1. in const programming, we generally use constants to define the constant values that cannot be changed during runtime. let's take a look at const in php, there is nothing to say about this, just to improve the
1. Use the structlayout feature to limit the declared structure or ClassThe Common Language Runtime library uses structlayoutattribute to control the physical layout of data fields of a class or structure in the managed memory, that is, classes or
Static variables only exist in the function scope. That is to say, static variables only exist in the stack. Generally, variables in a function are released after the function ends, such as local variables, but static variables do not. That is to
Static variables only exist in the function scope. That is to say, static variables only exist in the stack. Generally, variables in a function are released after the function ends, such as local variables, but static variables do not. That is to
There are two ways to define a property :
Adorners: Applying adorners on methods
Static fields are: Static fields that define values as property objects in a class
Adorner mode: Apply @property adorner to ordinary method of
My development environment: myeclipse10 + tomcat7 + jdk6.
Developing a servlet3 program requires some environmental support. Servlet3 is part of the Java ee6 specification. Both myeclipse10 and tomcat7 provide support for the Java ee6 specification.
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