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<!DOCTYPE html> <html> <title>磅到公斤的重量转换器</title> <body> <h1>重量转换器</h1> <p>在磅字段中输入数值以将其转换为公斤：</p> <p> <label>磅：</label> <input id="inputPounds" type="number" placeholder="磅" oninput="weightConverter(this.value)" onchange="weightConverter(this.value)"> </p> <p>公斤：<span id="outputKilograms"></span></p> <script> function weightConverter(valNum) { document.getElementById("outputKilograms").innerHTML=valNum/2.2046; } </script> </body> </html>