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<!DOCTYPE html><html lang="en"> <head> <meta charset="UTF-8"> <title>DOM编程</title></head> <script> //Node 对象 // firstChild // 描述：返回指定节点的第一个子节点 // last 阅读全文
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<!DOCTYPE html><html lang=""> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>正则表达式</title 阅读全文
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<!DOCTYPE html><html lang="en"> <head> <meta charset="UTF-8"> <title>map 数组</title></head> <body> <script> var data = [1, 2, 3, 4, 5]; var arr = data. 阅读全文
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<!DOCTYPE html><html lang="en"> <head> <meta charset="UTF-8"> <title>百钱百鸡</title></head> <body> <script> for (var n = 0; n <= 20; n++) { //公鸡 for (var 阅读全文
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<!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <title>Date对象</title></head> <body> <script> //构建对象 var date = new Date() //获取年份 var full 阅读全文