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源代码：
点击运行
<!DOCTYPE html> <html> <body> 搜索: <input type="search" id="mySearch"><br><br> <button onclick="disableBtn()">禁用搜索字段</button> <button onclick="undisableBtn()">启用搜索字段</button> <script> function disableBtn() { document.getElementById("mySearch").disabled = true; } function undisableBtn() { document.getElementById("mySearch").disabled = false; } </script> </body> </html>
运行结果
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