摘要:<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Document</title> </head> <body> <input type="button" value="alert" id="btn1"> <input type="button" value="pr
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摘要:<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Document</title> </head> <body> <script> // 当我们是用window的成员的时候,window可以省略 // window.document // window.alert('hello'); // 定义的全局变量都属
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摘要:BOM的概念 BOM(Browser Object Model) 是指浏览器对象模型,浏览器对象模型提供了独立于内容的、可以与浏览器窗口进行互动的对象结构。BOM由多个对象组成,其中代表浏览器窗口的Window对象是BOM的顶层对象,其他对象都是该对象的子对象。 我们在浏览器中的一些操作都可以使用B
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摘要:<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Document</title> <script> </script> </head> <body> <input id="txt" type="text"> <script> // 键盘事件 // keydown 键盘按下的时候 //
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摘要:<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Document</title> <style> #box1 { width: 300px; height: 300px; background-color: red; } #box2 { width: 200px; height: 200px; backgr
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摘要:<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Document</title> </head> <body> <a id="link" href="http://www.baidu.com">baidu</a> <script> var link = document.getElementBy
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摘要:<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Document</title> <style> body { margin: 0; } #box { width: 300px; height: 300px; border: 1px solid red; margin: 100px 10px 10px 10
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摘要:<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Document</title> <style> body { height: 1000px; } </style> </head> <body> <script src="common.js"></script> <script> // e.
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摘要:<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Document</title> <style> body { height: 1000px; } </style> </head> <body> <script> // e.clientX/e.clientY 鼠标在可视区域中的位置 // // e.page
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摘要:<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Document</title> <style> body { height: 1000px; } #ts { position: absolute; } </style> </head> <body> <img src="images/tianshi.gif
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摘要:<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Document</title> <style> body { margin: 0; height: 1000px; } #box { margin: 100px; margin-top: 500px; width: 200px; height: 200px;
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摘要:<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Document</title> <style> body { margin: 0; } #box { margin: 100px; width: 200px; height: 200px; background-color: red; } </style>
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摘要:<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Document</title> <style> #box1 { width: 300px; height: 300px; background-color: red; } #box2 { width: 200px; height: 200px; backgr
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摘要:<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Document</title> </head> <body> <input type="button" value="按钮" id="btn"> <script src="common.js"></script&
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摘要:<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Document</title> </head> <body> <input type="button" value="按钮" id="btn"> <script> var btn = document.getElementById(
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摘要:<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Document</title> </head> <body> <input type="button" value="按钮" id="btn"> <script> var btn = document.getElementById(
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摘要:<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Document</title> </head> <body> <input type="button" value="按钮" id="btn"> <script> var btn = document.getElementById(
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摘要:<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Document</title> </head> <body> <input type="button" value="按钮" id="btn"> <!-- <script src="user1.js"></
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