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<!DOCTYPE html> <html> <body> <p>打开一个新窗口，并将新窗口的宽度减少 50px，将高度增加 50px。</p> <p><b>提示：</b>多次单击“调整窗口大小”按钮。</p> <button onclick="openWin()">创建窗口</button> <button onclick="resizeWin()">调整窗口大小</button> <script> var myWindow; function openWin() { myWindow = window.open("", "", "width=500, height=500"); } function resizeWin() { myWindow.resizeBy(-50, 50); myWindow.focus(); } </script> </body> </html>