<!DOCTYPE html>
<html>
<head>
<title>JS Button Disabled Example</title>
</head>
<body>
<button id="myButton" onclick="alert('Button clicked!')">Click Me</button>
<button onclick="toggleButtonState()">Toggle Button State</button>
<script>
function toggleButtonState() {
var button = document.getElementById("myButton");
if (button.disabled) {
button.disabled = false;
button.innerText = "Click Me";
} else {
button.disabled = true;
button.innerText = "Disabled";
}
}
</script>
</body>
</html>
HTML结构:
id="myButton"
) 初始是可点击的,点击会弹出一个提示框。JavaScript逻辑:
toggleButtonState
函数通过 document.getElementById
获取第一个按钮元素。disabled
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