Let's take a look at this problem. To publish information, the information under different categories is not uniform. for example, there are basic elements: title, release time, and body. In some categories, one or four pieces of information may be used as an information publishing function, but the information under each category is not uniform. for example, there are basic elements: title, release time, and body. However, in some categories, the information may contain one to four fields, some may also contain text images and some document content, that is, the table structure and HTML form may be different, and how to design them?
I. make a table only. all possible fields are taken into account.
2. create a table containing only basic fields, and associate other redundant fields.
3: I haven't thought about it yet
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The sergeant heard the truth, while the sergeant heard the truth. if the sergeant died, the corporal heard the truth and laughed. Not smiling.
"Life" is -- class, school, holiday, graduation, mixed enough, old, regret, dead!
Bytes. In some categories, there may be one to four pieces of information...
