~83 form introduction

One 、 Forms

In the web page Forms Local information can be transferred to remote servers

Use form To create a form

form Properties of ：action Address of the server that submitted the form

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Two 、form The content in

（1） The data should be submitted to the server , Must specify a name value

（2） Radio buttons need to be set to the same name value

（3）value attribute Finally, it will be uploaded to the server as the user's filled value

（4）checked Set the default selection

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