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js实现九九乘法表效果
时间:2017-03-31 编辑:简简单单 来源:一聚教程网
代码如下:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 | < 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 = '< div class = "wrap" >'; for (var i = 1; i <= a; i++) { for (var j = 1; j <= i; j++) { var curstr = j + ' x ' + i + '= ' + i * j; j !== i ? str += '< span class = "' + 'bg' + (i % 3) + '" >' + curstr + ' span >' : str += '< span class = "' + 'last bg' + (i % 3) + '" >' + curstr + ' span >< br />'; } } str += " div >"; 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"); } }
body >
html > |
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