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js implements the exquisite ninety-nine multiplication table effect code

零下一度Original: 2017-04-19 15:58:223882browse

This article mainly introduces the sample code of js to achieve the gorgeous nine-nine multiplication table effect. It has a very good reference value. Let’s take a look at it with the editor.

Rendering:

Code As follows:

<!DOCTYPE html>
<html lang="en">
<head>
 <meta charset="UTF-8">
 <title>span实现的乘法表</title>
 <style type="text/css">
  .wrap {
   width: 800px;
   margin: 20px auto;
   -webkit-user-select: none;
   -moz-user-select: none;
   -ms-user-select: none;
   user-select: none;
  }
  span {
   padding: 3px;
   font-weight: 700;
   display: inline-block;
   line-height: 30px;
   border-bottom: 2px solid #000000;
   border-left: 2px solid #000000;
   width: 80px;
   cursor: pointer;
  }
  .last {
   margin-top: -2px;
   border-top: 2px solid #000000;
   border-right: 2px solid #000000;
  }

  .bg0 {
   background-color: yellow;
  }

  .bg1 {
   background-color: lawngreen;
  }

  .bg2 {
   background-color: lightblue;
  }
  .hover {
   background-color: #BB3BD9;
  }
  .only{
   background-color: lightsalmon;
  }
 </style>
</head>
<body>
<script>
 function multiplication(a) {
  var str = &#39;<p class="wrap">&#39;;
  for (var i = 1; i <= a; i++) {
   for (var j = 1; j <= i; j++) {
    var curstr = j + &#39; x &#39; + i + &#39;= &#39; + i * j;
    j !== i ? str += &#39;<span class="&#39; + &#39;bg&#39; + (i % 3) + &#39;">&#39; + curstr + &#39;</span>&#39; : str += &#39;<span class="&#39; + &#39;last bg&#39; + (i % 3) + &#39;">&#39; + curstr + &#39;</span><br/>&#39;;
   }
  }
  str += "</p>";
  document.write(str);
 }
 i

 multiplication(9);

 var oSpans = document.getElementsByTagName("span");
 for (var i = 0; i < oSpans.length; i++) {
  oSpans[i].onclick = function () {
   //alert("我是第 "+parseInt(this.innerHTML)+" 行");
   alert(this.innerHTML + " 我在第 " + this.innerHTML.charAt(4) + " 行");
  }
  oSpans[i].onmouseover = function () {
   //console.log(111);
   var num = this.innerHTML.charAt(4);
   //console.log(num);
   for (var j = 0; j < oSpans.length; j++) {
    if (oSpans[j].innerHTML.charAt(4) === num) {
     oSpans[j].classList.add("hover");
    }
   }
   this.classList.add("only");
  }
  oSpans[i].onmouseout = function () {
   var num = this.innerHTML.charAt(4);
   for (var j = 0; j < oSpans.length; j++) {
    if (oSpans[j].innerHTML.charAt(4) === num) {
     oSpans[j].classList.remove("hover");
    }
   }
   this.classList.remove("only");
  }
 }
</script>
</body>
</html>

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