Window screenLeft和screenTop 屬性
Window對象 定義和用法
screenLeft和screenTop屬性返回窗口相對於屏幕的X和Y坐標。
語法
window.screenLeft
window.screenTop
window.screenTop
瀏覽器支持
所有主流瀏覽器都支持screenLeft和screenTop屬性，Firefox除外。
注意： Firefox瀏覽器請使用" window.screenX " and " window.screenY "。
實例
實例
返回新窗口相對於屏幕的X和Y坐標：
< ! DOCTYPE html >
< html >
< head >
< meta charset = " utf-8 " >
< title > 本教程(w3big.com) </ title >
< script >
function openWin ( ) {
myWindow = window . open ( ' ' , ' ' ) ; myWindow . document . write ( " <p>這是'我的窗口' " ) ; myWindow . document . write ( " <br>ScreenLeft: " + myWindow . screenLeft ) ; myWindow . document . write ( " <br>ScreenTop: " + myWindow . screenTop + " </p> " ) ; }
</ script >
</ head >
< body >
< input type = " button " value = " 打開'我的窗口' " onclick = " openWin() " >
</ body >
</ html >
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Window對象