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<h1>我的第一段 JavaScript</h1>
<p>JavaScript 能够对事件作出反应。比如对按钮的点击：</p>
<p id="demo">JavaScript change HTMLelement Content</p>
<script type="text/javascript">
function box() {
alert(‘aaa‘);
}
function myFunction() {
x = document.getElementById("demo"); // 找到元素
x.innerHTML = "Hello JavaScript改变内容!"; // 改变内容
alert(‘aaa‘);
}
function myadd() {
var x =parseInt( document.getElementById(‘a‘).value) var y = Number(document.getElementById(‘b‘).value) document.getElementById(‘c‘).value=x+y;
}
function mysub(a, b) {
a + b;
}
function changeImage() {
element = document.getElementById(‘myimage‘)
if (element.src.match("pic1")) {
element.src = "file:///C:/Users/Administrator/Pictures/img/b.bmp";
} else {
element.src = "file:///C:/Users/Administrator/Pictures/img/pic1.png"
}
}
</script>
<input id="a">
<div
style="HEIGHT: 19px; WIDTH: 22px; POSITION: relative; DISPLAY: inline"
ms_positioning="FlowLayout">+</div>
<input id="b">
<input type="button" value="=合计" onclick="myadd()">
<input id="c">
<img id="myimage" onclick="changeImage()"
src="file:///C:/Users/Administrator/Pictures/img/pic1.png">
</body>
</html>
时间： 2024-10-03 21:02:51