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  • 九宫格布局

      1 <!DOCTYPE html>
      2 <html lang="en">
      3 <head>
      4     <meta charset="UTF-8">
      5     <title></title>
      6     <style>
      7         * {margin: 0;padding: 0;}
      8         #container{ 1200px;margin: 0 auto;}
      9         #top {padding: 20px;}
     10         #bottom {position: relative;}
     11         .box { 220px;height: 360px;margin: 0 15px 15px 0;background-color: #e8e8e8;}
     12         .box p {color: orangered;}
     13     </style>
     14 </head>
     15 <body>
     16     <div id="container">
     17         <div id="top">
     18             <button id="btn1">3列</button>
     19             <button id="btn2">4列</button>
     20             <button id="btn3">5列</button>
     21         </div>
     22         <div id="bottom">
     23             <div class="box">
     24                 <img src="image/1.jpg" alt="">
     25                 <h4>因为遇见你</h4>
     26                 <p>孙怡邓伦牵手演绎刺绣奇缘</p>
     27             </div>
     28             <div class="box">
     29                 <img src="image/2.jpg" alt="">
     30                 <h4>因为遇见你</h4>
     31                 <p>孙怡邓伦牵手演绎刺绣奇缘</p>
     32             </div>
     33             <div class="box">
     34                 <img src="image/3.jpg" alt="">
     35                 <h4>因为遇见你</h4>
     36                 <p>孙怡邓伦牵手演绎刺绣奇缘</p>
     37             </div>
     38             <div class="box">
     39                 <img src="image/4.jpg" alt="">
     40                 <h4>因为遇见你</h4>
     41                 <p>孙怡邓伦牵手演绎刺绣奇缘</p>
     42             </div>
     43             <div class="box">
     44                 <img src="image/1.jpg" alt="">
     45                 <h4>因为遇见你</h4>
     46                 <p>孙怡邓伦牵手演绎刺绣奇缘</p>
     47             </div>
     48             <div class="box">
     49                 <img src="image/5.jpg" alt="">
     50                 <h4>因为遇见你</h4>
     51                 <p>孙怡邓伦牵手演绎刺绣奇缘</p>
     52             </div>
     53             <div class="box">
     54                 <img src="image/6.jpg" alt="">
     55                 <h4>因为遇见你</h4>
     56                 <p>孙怡邓伦牵手演绎刺绣奇缘</p>
     57             </div>
     58             <div class="box">
     59                 <img src="image/8.jpg" alt="">
     60                 <h4>因为遇见你</h4>
     61                 <p>孙怡邓伦牵手演绎刺绣奇缘</p>
     62             </div>
     63             <div class="box">
     64                 <img src="image/10.jpg" alt="">
     65                 <h4>因为遇见你</h4>
     66                 <p>孙怡邓伦牵手演绎刺绣奇缘</p>
     67             </div>
     68             <div class="box">
     69                 <img src="image/11.jpg" alt="">
     70                 <h4>因为遇见你</h4>
     71                 <p>孙怡邓伦牵手演绎刺绣奇缘</p>
     72             </div>
     73             <div class="box">
     74                 <img src="image/12.jpg" alt="">
     75                 <h4>因为遇见你</h4>
     76                 <p>孙怡邓伦牵手演绎刺绣奇缘</p>
     77             </div>
     78             <div class="box">
     79                 <img src="image/13.jpg" alt="">
     80                 <h4>因为遇见你</h4>
     81                 <p>孙怡邓伦牵手演绎刺绣奇缘</p>
     82             </div>
     83             <div class="box">
     84                 <img src="image/14.jpg" alt="">
     85                 <h4>因为遇见你</h4>
     86                 <p>孙怡邓伦牵手演绎刺绣奇缘</p>
     87             </div>
     88             <div class="box">
     89                 <img src="image/15.jpg" alt="">
     90                 <h4>因为遇见你</h4>
     91                 <p>孙怡邓伦牵手演绎刺绣奇缘</p>
     92             </div>
     93             <div class="box">
     94                 <img src="image/1.jpg" alt="">
     95                 <h4>因为遇见你</h4>
     96                 <p>孙怡邓伦牵手演绎刺绣奇缘</p>
     97             </div>
     98             <div class="box">
     99                 <img src="image/2.jpg" alt="">
    100                 <h4>因为遇见你</h4>
    101                 <p>孙怡邓伦牵手演绎刺绣奇缘</p>
    102             </div>
    103             <div class="box">
    104                 <img src="image/3.jpg" alt="">
    105                 <h4>因为遇见你</h4>
    106                 <p>孙怡邓伦牵手演绎刺绣奇缘</p>
    107             </div>
    108             <div class="box">
    109                 <img src="image/4.jpg" alt="">
    110                 <h4>因为遇见你</h4>
    111                 <p>孙怡邓伦牵手演绎刺绣奇缘</p>
    112             </div>
    113             <div class="box">
    114                 <img src="image/1.jpg" alt="">
    115                 <h4>因为遇见你</h4>
    116                 <p>孙怡邓伦牵手演绎刺绣奇缘</p>
    117             </div>
    118             <div class="box">
    119                 <img src="image/5.jpg" alt="">
    120                 <h4>因为遇见你</h4>
    121                 <p>孙怡邓伦牵手演绎刺绣奇缘</p>
    122             </div>
    123             <div class="box">
    124                 <img src="image/6.jpg" alt="">
    125                 <h4>因为遇见你</h4>
    126                 <p>孙怡邓伦牵手演绎刺绣奇缘</p>
    127             </div>
    128             <div class="box">
    129                 <img src="image/8.jpg" alt="">
    130                 <h4>因为遇见你</h4>
    131                 <p>孙怡邓伦牵手演绎刺绣奇缘</p>
    132             </div>
    133             <div class="box">
    134                 <img src="image/10.jpg" alt="">
    135                 <h4>因为遇见你</h4>
    136                 <p>孙怡邓伦牵手演绎刺绣奇缘</p>
    137             </div>
    138             <div class="box">
    139                 <img src="image/11.jpg" alt="">
    140                 <h4>因为遇见你</h4>
    141                 <p>孙怡邓伦牵手演绎刺绣奇缘</p>
    142             </div>
    143             <div class="box">
    144                 <img src="image/12.jpg" alt="">
    145                 <h4>因为遇见你</h4>
    146                 <p>孙怡邓伦牵手演绎刺绣奇缘</p>
    147             </div>
    148             <div class="box">
    149                 <img src="image/13.jpg" alt="">
    150                 <h4>因为遇见你</h4>
    151                 <p>孙怡邓伦牵手演绎刺绣奇缘</p>
    152             </div>
    153             <div class="box">
    154                 <img src="image/14.jpg" alt="">
    155                 <h4>因为遇见你</h4>
    156                 <p>孙怡邓伦牵手演绎刺绣奇缘</p>
    157             </div>
    158             <div class="box">
    159                 <img src="image/15.jpg" alt="">
    160                 <h4>因为遇见你</h4>
    161                 <p>孙怡邓伦牵手演绎刺绣奇缘</p>
    162             </div>
    163         </div>
    164     </div>
    165 <script>
    166     window.onload = function (ev) {
    167           $('btn1').addEventListener('click', function (ev1) {
    168                j_flex(3, $('bottom'));
    169           });
    170 
    171         $('btn2').addEventListener('click', function (ev1) {
    172             j_flex(4, $('bottom'));
    173         });
    174 
    175         $('btn3').addEventListener('click', function (ev1) {
    176             j_flex(5, $('bottom'));
    177         });
    178     };
    179 
    180     /**
    181      * 九宫格布局
    182      * @param {number}allCols
    183      * @param {object}parentNode
    184      */
    185     function j_flex(allCols, parentNode) {
    186          // 1. 定义变量
    187         var boxW = 220, boxH = 360, marginXY = 15;
    188 
    189         // 2. 遍历
    190         for (var i = 0; i < parentNode.children.length; i++) {
    191             // 2.1 求出当前盒子所在的行和列
    192             var row = Math.floor(i/allCols);  //除就是行
    193             var col = Math.floor(i % allCols); //取余就是列
    194             // console.log('当前盒子所在的位置: (' + row + ',' + col + ')');
    195 
    196             // 2.2 盒子的定位
    197             var currentBox = parentNode.children[i];
    198             currentBox.style.position = 'absolute';
    199             currentBox.style.left = col * (boxW + marginXY) + 'px';
    200             currentBox.style.top = row * (boxH + marginXY) + 'px';
    201         }
    202 
    203     }
    204 
    205     function $(id) {
    206         return typeof id === 'string' ? document.getElementById(id) : null;
    207     }
    208 </script>
    209 </body>
    210 </html>
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  • 原文地址:https://www.cnblogs.com/zhangzhengyang/p/11192361.html
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