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05-JavaScript.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<script>
window.onload = function () {
var flag = true;
var lightEle = document.getElementById("light");
var inputEle = document.getElementById("input");
function changeLight(light) {
light.src = (flag = !flag) ? "img/off.gif" : "img/on.gif"
}
lightEle.onclick = function(){
changeLight(this);
}
lightEle.onmousedown = function(){
changeLight(this);
}
lightEle.onmouseover = function () {
changeLight(this);
}
// inputEle.onfocus = function () {
// changeLight(lightEle);
// spanEle.innerHTML = "获取焦点";
// }
// inputEle.onblur = function () {
// changeLight(lightEle);
// spanEle.innerHTML = "失去焦点";
// }
}
function focusFunc() {
var spanEle = document.getElementById("spanId");
spanEle.innerHTML = "获取焦点";
}
function blurFunc() {
var spanEle = document.getElementById("spanId");
spanEle.innerHTML = "失去焦点";
}
</script>
</head>
<body>
<input type="text" id="input" name="username" onfocus="focusFunc()" onblur="blurFunc()">
<span id="spanId"></span>
<img src="img/off.gif" alt="" id="light">
</body>
</html>