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编辑您的代码：
<html> <head> <script type="text/javascript"> function setMinHeight() { document.getElementById("p1").style.minHeight="200px"; } </script> </head> <body> <p id="p1">This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text.</p> <input type="button" onclick="setMinHeight()" value="Set min height" /> </body> </html>
查看结果: