checkbox object

A checkbox NAME="checkboxName" VALUE="http://www.dedecms.com/web-art/htmlbase/Javascript/20020827/checkboxValue" [CHECKED] []> textToDisplayNAME="checkboxName" specifies the name of the checkbox object. You can access this value using the name property.
VALUE="http://www.dedecms.com/web-art/htmlbase/Javascript/20020827/checkboxValue" specifies a value that is returned to the server when the checkbox is selected and the form is submitted. This defaults to ") { checkedButt VALUE="http://www.dedecms.com/web-art/htmlbase/Javascript/20020827/Quit" >

See also

cookie property

String value of a cookie, which is a small piece of informati@=" to map // from in millisec;" // set the cookie expirati@") and indexOf("=") to determine the date and time stored in the cookie.

See also

cos method

Returns the cosine of a number.

语法

Math.cos(number)

number is a numeric expression representing the size of an angle in radians, or a property of an existing object.

用法

Math

描述

The cos method returns a numeric value between -1 and 1, which represents the cosine of the angle.

例子

//Displays the value 6.123031769111886e-017document.write("The cosine of PI/2 radians is " + Math.cos(Math.PI/2))//Displays the value -1document.write("<P>The cosine of PI radians is " + Math.cos(Math.PI))//Displays the value 1document.write("<P>The cosine of 0 radians is " + Math.cos(0))

See also