<!DOCTYPE html><html lang="en"><head><meta charset="UTF-8"&...
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<ul> <li>已買到的寶貝</li> <li>我的足跡</li> </ul>*{margi...
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<!DOCTYPE html> <html> <head> <meta charset="UTF-8"&g...
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<!DOCTYPE html> <html> <head> <meta charset="utf-8"> &...
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<!DOCTYPE html> <html> <head> <title>CSS中的浮動(dòng)</title> <meta&n...
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div{ width: 400px; height: 350px; margin: 200px auto; background: linear-gradient(to bottom,...
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學(xué)會(huì)了用首行縮進(jìn)text-indent,知道了PRE標(biāo)簽是可保留空格和換行符的。熟悉了before和after的用法，還有colspan和rowspan的用法。還有OL有序列表，UL無(wú)序列表。
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1、示例代碼<?php $arr = [1, 2, 4]; foreach ($arr as $val) { $sum += $val; } var_dump($va...
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