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这篇文章将为大家详细讲解有关js如何实现下拉菜单效果,小编觉得挺实用的,因此分享给大家做个参考,希望大家阅读完这篇文章后可以有所收获。
效果图:
代码如下:
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title></title> <style type="text/css"> *{ margin: 0; padding: 0; } body { width: 460px; margin: 0 auto; font-family: "微软雅黑"; } .search{ height: 23px; line-height: 23px; border-bottom: 1px solid #d4d4d4; font-weight: 600; } .search img{ float: left; display: inline-block; margin-top: 5px; } .search span{ float: left; font-size: 14px; margin-left: 4px; } .content1{ height: 254px; width: 100%; background: #f5f5f5; border-top: 1px solid #eaeaea; padding-top: 10px; } .content1 .content1_div{ width: 90%; height: 43px; margin: 5px auto; } .left{ width: 30%; height: 43px; border: 1px solid #eaeaea; font-size: 14px; text-align: center; line-height: 43px; float: left; } .right{ width: 68%; height:43px; border: 1px solid #eaeaea; font-size: 14px; text-align: center; line-height: 43px; float: left; background: #fff; margin-left: 3px; } .right .right_select{ display: inline-block; width: 90%; height: 20px; border: none; border: 1px solid #a4bed4; text-align: center; direction: center; } .right_select option{ text-align: center; } .hecha{ text-align: center; margin-top: 15px; } .jdcxx{ height: 146px; font-size: 14px; background: #ebebeb; background-size:cover; padding-top: 20px; } .jdcxx p,.jdcsyrxx p{ margin-left: 20px; font-weight: 600; line-height: 33.6px; font-size: 14px; } .jdcxx .xx,.jdcsyrxx .xx{ font-weight: 100; } .jdcsyrxx{ margin-top: 20px; padding-top: 20px; height: 146px; font-size: 20px; background:#ebebeb; background-size:cover; } .hcr,.hcsj{ height: 30px; font-size: 14px; line-height: 30px; border-bottom: 1px solid #d4d4d4; } .hcr_left{ display: block; float: left; height: 28px; width: 2px; margin-top: 1px; background: #226ed2; } .zc{ width: 100px; display: block; float: left; text-align: right; margin-left: 10px; margin-right: 10px; } .xm,.sj{ font-weight: 600; } .xiala_div{ top: 33px; display: none; z-index: 600; border: 1px solid #A4BED4; width: 253px; left: 13px; } .xiala_input{ line-height: 21px; width: 253px; border: none; outline: none; margin: 0; text-align: center; cursor: default; background: #fff; color: #000; } .xiala_input:hover{ background: #a4bed4; } </style> <link rel="stylesheet" type="text/css" href="http://at.alicdn.com/t/font_8q2l5tghvcvm42t9.css "/> <script src="http://libs.baidu.com/jquery/2.0.0/jquery.min.js"></script> </head> <body> <header> <div class="search"> <img width="" src="img/img_09.png"/> <span>查询</span> </div> </header> <div class="content1"> <div class="content1_div"> <div class="left"> 号牌种类: </div> <div class="right" > <input type="text" name="" id="" readonly value="小型汽车号牌" class="right_select"/> <span class="xialaan icon-icon09 iconfont" ></span> <div class="xiala_div" > <input type="text" class="xiala_input" readonly name="" id="" value="小型汽车号牌" /> <input type="text" class="xiala_input" readonly name="" id="" value="大型汽车号牌" /> <input type="text" class="xiala_input" readonly name="" id="" value="中型汽车号牌" /> </div> </div> </div> <div class="content1_div"> <div class="left"> 车牌号码: </div> <div class="right" > <input type="text" name="" id="" readonly value="鲁" class="right_select"/> <span class="xialaan icon-icon09 iconfont" ></span> <div class="xiala_div" > <input type="text" class="xiala_input" readonly name="" id="" value="晋" /> <input type="text" class="xiala_input" readonly name="" id="" value="京" /> <input type="text" class="xiala_input" readonly name="" id="" value="豫" /> </div> </div> </div> <div class="content1_div"> <div class="left"> </div> <div class="right" > <input type="text" name="" id="" value="A" readonly class="right_select"/> <span class="xialaan icon-icon09 iconfont" ></span> <div class="xiala_div" > <input type="text" class="xiala_input" readonly name="" id="" value="A" /> <input type="text" class="xiala_input" readonly name="" id="" value="B" /> <input type="text" class="xiala_input" readonly name="" id="" value="C" /> </div> </div> </div> </div> <script type="text/javascript"> var xialakuang = $(".xialaan"); var right_select = $(".right_select"); var xiala_div = $(".xiala_div") for( var i=0;i<xialakuang.length;i++ ){ xialakuang[i].index = i; var onOff = true; var This =i; xialakuang[i].onclick = function(){ if(onOff) { for( var j=0;j<xiala_div.length;j++ ){ if( this.index == j ){ xiala_div[j].style.display = 'block'; var xiala_input = xiala_div[j].getElementsByClassName("xiala_input"); if(j==0){ for(var k=0;k<xiala_input.length;k++){ xiala_input[k].index = k; xiala_input[k].onclick=function(){ var value = xiala_input[this.index].value; right_select[0].value=value; $(".xiala_div").css("display", "none") } } } if(j==1){ for(var k=0;k<xiala_input.length;k++){ xiala_input[k].index = k; xiala_input[k].onclick=function(){ var value = xiala_input[this.index].value; right_select[1].value=value; $(".xiala_div").css("display", "none") } } } if(j==2){ for(var k=0;k<xiala_input.length;k++){ xiala_input[k].index = k; xiala_input[k].onclick=function(){ var value = xiala_input[this.index].value; right_select[2].value=value; $(".xiala_div").css("display", "none") } } } }else{ xiala_div[j].style.display = 'none'; } } }else{ $(".xiala_div").css("display", "none") } onOff=!onOff } } for( var i=0;i<right_select.length;i++ ){ right_select[i].index = i; var onOff = true; var This =i; right_select[i].onclick = function(){ if(onOff) { for( var j=0;j<xiala_div.length;j++ ){ if( this.index == j ){ xiala_div[j].style.display = 'block'; var xiala_input = xiala_div[j].getElementsByClassName("xiala_input"); if(j==0){ for(var k=0;k<xiala_input.length;k++){ xiala_input[k].index = k; xiala_input[k].onclick=function(){ var value = xiala_input[this.index].value; right_select[0].value=value; $(".xiala_div").css("display", "none") } } } if(j==1){ for(var k=0;k<xiala_input.length;k++){ xiala_input[k].index = k; xiala_input[k].onclick=function(){ var value = xiala_input[this.index].value; right_select[1].value=value; $(".xiala_div").css("display", "none") } } } if(j==2){ for(var k=0;k<xiala_input.length;k++){ xiala_input[k].index = k; xiala_input[k].onclick=function(){ var value = xiala_input[this.index].value; right_select[2].value=value; $(".xiala_div").css("display", "none") } } } }else{ xiala_div[j].style.display = 'none'; } } }else{ $(".xiala_div").css("display", "none") } onOff=!onOff } } </script> </body> </html>
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