54 lines
1.4 KiB
HTML
54 lines
1.4 KiB
HTML
<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta http-equiv="X-UA-Compatible" content="IE=edge">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Document</title>
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</head>
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<body>
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<button>点我</button>
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<div style="display: block;" class="text"> 我会变色</div>
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</body>
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<script>
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// 定义 button和文字
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var button = $("button"), text = $(".text");
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// 定义点击事件+if语句
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button.onclick = function () {
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if (text.style.display == "block") {
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text.style.display = "none"
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} else {
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text.style.display = "block"
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text.style.color = `hsl(${math.random() * 360},100%,50%)`
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}
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}
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// 封装调用
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function $(className) {
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return document.querySelector(className)
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}
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// console.dir(document.querySelector("button"));
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// addEventListener
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// document.querySelector("button").addEventListener('click',function(){
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// setTimeout(function(){
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// alert('hahaha')
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// },1000)
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// })
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// document.querySelector('button').addEventListener('click', button)
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// function button() {
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// setTimeout(function () {
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// alert('hahaha')
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// }, 1000
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// )
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// }
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// button( function(){
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// onclick('具体')
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// } )
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</script>
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</html> |