?????? ??
JavaScript ??? ???? ??? ???? ?? ? ????.
JavaScript ??
JavaScript? ??? ???? ????.
JavaScript? ????? ??? ???? ??? ?? ??? ??? ? ????.
? ? ??? //? ?????.
? ???? ? ? ??? ???? ??? ?????.
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>php中文網(wǎng)(php.cn)</title>
</head>
<body>
<h1 id="myH1"></h1>
<p id="myP"></p>
<script>
// 輸出標題：
document.getElementById("myH1").innerHTML="PHP中文網(wǎng)";
// 輸出段落：
document.getElementById("myP").innerHTML="PHP.CN";
</script>
<p><b>注釋：</b>注釋不會被執(zhí)行。</p>
</body>
</html>????? ???? ??? ???.
JavaScript ?? ? ??
?? ??? /*? ???? */? ????.
?? ???? ?? ? ??? ???? ??? ?????.
<!DOCTYPE html>
<html>
<head>
<title>php中文網(wǎng)測試實例</title>
<meta charset="utf-8">
</head>
<body>
<h1 id="myH1"></h1>
<p id="myP"></p>
<script>
/*
下面的這些代碼會輸出
一個標題和一個段落
并將代表主頁的開始
*/
document.getElementById("myH1").innerHTML="歡迎來到php中文網(wǎng)";
document.getElementById("myP").innerHTML="這是一個段落。";
</script>
<p><b>注釋：</b>注釋塊不會被執(zhí)行。</p>
</body>
</html>????? ???? ??? ???
??? ???? ?? ??
?? ??? ??? ??? ???? ? ?????. ?? ? ? ?? ??(???? ?? ??):
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>php中文網(wǎng)(php.cn)</title>
</head>
<body>
<h1 id="myH1"></h1>
<p id="myP"></p>
<script>
//document.getElementById("myH1").innerHTML="歡迎來到我的主頁";
document.getElementById("myP").innerHTML="這是我的第一個段落。";
</script>
<p><strong>注意:</strong> 注釋塊不會被執(zhí)行</p>
</body>
</html>????? ???? ??? ???
??: ?? ? ??? ?? ???? ?????. ???? ?? ?? ??? ???? ???. ?? ? ???? ??
??? ?? ??
? ?????
var x=5; // x? ???? 5? ?????
