HTML Beginner's Guide (9)
Specifies a link to a QuickTime movie. Some common file types and their extensions:
File type extension
plain text .txt
HTML document.html
GIF image.gif
TIFF image.tiff
X bitmap image. or .mpg
Remember your assumed readers and the software they use. For example, most UNIX workstations cannot play QuickTime movies.
Tables
Before HTML formulated table tags, HTML authors had to be careful in the
tag Arrange their information in tabular format, count the number of spaces, and preview the output. Tables are not only useful for describing tabular information, but they also make it easy for regular HTML writers to write large amounts of web pages. (See NCSA Relativity Group's pages for a good example.)
Consider your tabular information according to the coding explanation below. A table should have headers that describe what each row/column contains, with rows representing the information and cells representing each item. In the table below, One column contains header information, each row describes an HTML table tag, and each unit contains a pair of tags or an explanation of the tag function.
Table element
Element description
Note: Any other tag can be used within the caption tag.
Table Properties
Note: Properties defined in
Attribute description
ALIGN (LEFT, CENTER, RIGHT)
VALIGN (TOP, MIDDLE, BOTTOM)
COLSPAN=n
ROWSPAN=n
NOWRAP
The horizontal position allocation of a unit.
The vertical position allocation of a unit.
How many columns a unit spans (n).
How many rows a unit spans (n).
Turn off word wrapping in a unit.
General table format
The general format of a table is:
Cell content | <== The first cell (a head) of the first lineCell content | <== The last unit of the first line (a head)
---|---|
Unit content | <== The first unit in the second rowUnit content | <== The last one in the second row Unit
Unit content | <== The last line of A unitUnit content | <== The last line of the last unit
The
Used by non-tabular information Tables
Some HTML authors use tables to describe non-tabular information. For example, because links can be contained within table cells, some authors use tables without borders to combine a number of separate images to create "one" image. Browsers that can display tables These physically separate images can be displayed seamlessly, making the combined image resemble an image map (an image with a rectangular hyperlink area).
Using tables with image borders also You can get a good display effect. Give it a try and see which style you like.
Fill-out Forms
Web form allows readers to return information to the Web server to produce some kind of action. For example, Suppose you want to collect names and email addresses in order to send an email to readers who have requested it. For each person who enters his/her name and address, you need to get the information to be sent and add the respondent's item to the database .
This kind of input data processing is usually done by script (descriptive language: Translator's Note) describing functions or programs written in Perl or other languages that process text, files and information. If you can't write For programs or script functions that can process input data, you have to find someone else to do it for you.
Form itself is relatively simple. They are also generated using HTML tags. The difference may be in the program or script that accepts and processes the submitted data. Description function. Since it is necessary to explain the special script description function that processes input information, filling forms will not be discussed in this guide.
The above is the content of HTML Beginner’s Guide (9). For more related content, please pay attention to the PHP Chinese website (www .php.cn)!

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