Bulb精品文章

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  總結(jié)常用偽類與偽元素

  ...辦法點(diǎn)亮小燈泡，因?yàn)榇藭r(shí)選中的是第一個(gè) p 標(biāo)簽 */ .bulb 的兄弟元素 .bulb:first-child { background-image: url(../assets/img/light.png)!important; } 效果如下： /* :first-child 點(diǎn)亮第一個(gè)小燈泡， 此時(shí)選中的是第一個(gè) .b...

  anRui 2019-08-30 10:50 評(píng)論0 收藏0
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  leetcode 319. Bulb Switcher

  題目要求 There are n bulbs that are initially off. You first turn on all the bulbs. Then, you turn off every second bulb. On the third round, you toggle every third bulb (turning on if its off or turning ...

  pkhope 2019-08-15 14:43 評(píng)論0 收藏0
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  設(shè)計(jì)模式--簡(jiǎn)化解釋(三)——行為型模式

  ...執(zhí)行所有可以執(zhí)行的動(dòng)作。 // Receiver(接收者) public class Bulb { public void turnOn() { System.out.println(Bulb has been lit); } public void turnOff() { System.out.println(Dar...

  cangck_X 2019-08-16 11:10 評(píng)論0 收藏0