setTimeout
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描述︰Evaluates an expression after a specified number of milliseconds has elapsed.
參數描述︰
expression (String) Code to be executed at the specified interval.
msec (Long) Numeric value or numeric string in millisecond units.
language Optional. (String) String that specifies the language in which the code is executed.
返回值︰Returns an identifier that is used only to cancel the evaluation with the clearTimeout method.
應用於︰window
範例︰
var t = window.setTimeout("alert('time is out')", 1000);