<div class="featurebox">
<h1>Javascript Learning</h1>
<div class="bag">
<p>Input Your Value here :<input id="numb" placeholder="provide your value here">
<button class="btn" onclick="myfunction()">Result</button>
</p>
<table border="1px solid black">
<tr>
<td>Decimal Value</td>
<td>Hexadecimal Value</td>
<td>Octal Value</td>
<td>Binary Value</td>
</tr>
<tr>
<td><p id="text1"></p></td>
<td><p id="text2"></p></td>
<td><p id="text3"></p></td>
<td><p id="text4"></p></td>
</tr>
</table>
</div>
<footer>© Copyright Reserved by Shah Imran </footer>
</div>
<script>
function myfunction(){
var val,text1,text2,text3,text4;
val = document.getElementById("numb").value;
document.getElementById("text1").innerHTML= val.toString(10);
document.getElementById("text1").innerHTML= val.toString(16);
document.getElementById("text1").innerHTML= val.toString(8);
document.getElementById("text1").innerHTML= val.toString(2);
}
</script>
代码有问题吗?我没有在此处附加CSS代码。但是输出在每个字段中显示相同的值。为什么会这样呢?是否存在与变量有关的问题?
val = document.getElementById("numb").value;
应该是
val = parseInt(document.getElementById("numb").value);
function myfunction() { var val, text1, text2, text3, text4; val = parseInt(document.getElementById("numb").value); document.getElementById("text1").innerHTML = val.toString(10); document.getElementById("text2").innerHTML = val.toString(16); document.getElementById("text3").innerHTML = val.toString(8); document.getElementById("text4").innerHTML = val.toString(2); }
<div class="featurebox"> <h1>Javascript Learning</h1> <div class="bag"> <p>Input Your Value here :<input id="numb" placeholder="provide your value here"> <button class="btn" onclick="myfunction()">Result</button> </p> <table border="1px solid black"> <tr> <td>Decimal Value</td> <td>Hexadecimal Value</td> <td>Octal Value</td> <td>Binary Value</td> </tr> <tr> <td> <p id="text1"></p> </td> <td> <p id="text2"></p> </td> <td> <p id="text3"></p> </td> <td> <p id="text4"></p> </td> </tr> </table> </div> <footer>© Copyright Reserved by Shah Imran </footer> </div>