web定义一个求阶乘函数jc,调用函数求1,2,3,4,5,6,7的阶乘并在网页中输出
时间: 2023-07-16 20:14:54 浏览: 107
首先,在HTML中定义一个用于显示结果的元素,比如一个`<div>`标签:
```html
<div id="result"></div>
```
然后,在JavaScript中定义阶乘函数`jc`:
```javascript
function jc(n) {
if (n === 0 || n === 1) {
return 1;
} else {
return n * jc(n - 1);
}
}
```
最后,在JavaScript中调用`jc`函数,计算1到7的阶乘并在网页中输出:
```javascript
var resultDiv = document.getElementById("result");
for (var i = 1; i <= 7; i++) {
var jiecheng = jc(i);
resultDiv.innerHTML += i + "! = " + jiecheng + "<br>";
}
```
完整的HTML和JavaScript代码如下:
```html
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>阶乘计算器</title>
</head>
<body>
<div id="result"></div>
<script>
function jc(n) {
if (n === 0 || n === 1) {
return 1;
} else {
return n * jc(n - 1);
}
}
var resultDiv = document.getElementById("result");
for (var i = 1; i <= 7; i++) {
var jiecheng = jc(i);
resultDiv.innerHTML += i + "! = " + jiecheng + "<br>";
}
</script>
</body>
</html>
```
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