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<head>4
<meta charset="utf-8">5
<title>蜜蜂教程(mifengjc.com)</title>6
<script>7
function changeSize() {8
document.getElementById("myframe").height = "300";9
document.getElementById("myframe").width = "300";10
}11
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<body>14
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<iframe id="myframe" src="https://www.mifengjc.com" height="200" width="200">16
<p>你的浏览器不支持iframes。</p>17
</iframe>18
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<input type="button" onclick="changeSize()" value="修改大小">20
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</body>22
</html>