54 lines
1.2 KiB
HTML
54 lines
1.2 KiB
HTML
<!DOCTYPE html>
|
|
<html lang="en">
|
|
|
|
<head>
|
|
<meta charset="UTF-8">
|
|
<meta http-equiv="X-UA-Compatible" content="IE=edge">
|
|
<meta name="viewport" content="width=device-width, initial-scale=1.0">
|
|
<title>Document</title>
|
|
</head>
|
|
|
|
<body>
|
|
<button>点我</button>
|
|
<div style="display:block;" class="text">哈哈哈哈哈哈</div>
|
|
</body>
|
|
<script>
|
|
// var button = $("button"), text = $(".text")
|
|
|
|
// button.onclick = function () {
|
|
// if (text.style.display == "block") {
|
|
// text.style.display = "none"
|
|
// } else {
|
|
// text.style.display = "block",
|
|
// text.style.color = `hsl(${Math.random() * 360},100%,50%)`
|
|
// }
|
|
// }
|
|
|
|
|
|
|
|
|
|
var button = $("button"), text = $(".text")//text前面没加.
|
|
button.onclick = function () {
|
|
if (text.style.display == "block") {//加“”号！
|
|
text.style.display = "none"//“”号！！
|
|
} else {
|
|
text.style.display = "block"//“”号！！
|
|
text.style.color = `hsl(${Math.random() * 360},100%,50%)`
|
|
}
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
function $(className) {
|
|
return document.querySelector(className)
|
|
}
|
|
</script>
|
|
|
|
</html> |