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Window confirm() 方法
tryjsref_confirm3
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<!DOCTYPE html> <html> <body> <p>单击按钮以在确认框中演示换行符。</p> <button onclick="myFunction()">试一试</button> <p id="demo"></p> <script> function myFunction() { var txt; var r = confirm("Press a button!\nEither OK or Cancel.\nThe button you pressed will be displayed in the result window."); if (r == true) { txt = "您按下了确定！"; } else { txt = "您按下了取消！"; } document.getElementById("demo").innerHTML = txt; } </script> </body> </html>