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<!DOCTYPE html> <html> <title>千克到克的重量转换器</title> <body> <h1>重量转换器</h1> <p>在千克字段中输入数值可将其转换为克：</p> <p> <label>千克：</label> <input id="inputKilograms" type="number" placeholder="千克" oninput="weightConverter(this.value)" onchange="weightConverter(this.value)"> </p> <p>克：<span id="outputGrams"></span></p> <script> function weightConverter(valNum) { document.getElementById("outputGrams").innerHTML=valNum*1000; } </script> </body> </html>