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Tryit: JAVASCRIPT
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<!DOCTYPE html> <html> <body> <p>点击按钮循环浏览本页面的框架，将每一框架的位置改为“begtut.com”。</p> <button onclick="myFunction()">试一试</button> <br><br> <iframe src="https://www.cnn.com"></iframe> <iframe src="https://www.bbc.com"></iframe> <iframe src="https://www.nytimes.com"></iframe> <script> function myFunction() { var frames = window.frames; var i; for (i = 0; i < frames.length; i++) { frames[i].location = "https://www.begtut.com"; } } </script> </body> </html>