本文共 2069 字，大约阅读时间需要 6 分钟。
项目需要，自己写了一个jquery代码，该代码需要满足两个文本框都不为空值，按钮才可用激活状态。
请转载此文的朋友务必附带原文链接，谢谢。
原文链接：http://xuyran.blog.51cto.com/11641754/1827959
| 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 | <!DOCTYPE html> < html > < head > < meta charset = "UTF-8" > < meta name = "viewport" content = "width=device-width, initial-scale=1,maximum-scale=1,user-scalable=no" > < script src = "../../js/jquery.js" ></ script > < script src = "../../js/mui.min.js" ></ script > < link href = "../../css/mui.min.css" rel = "stylesheet" /> < link rel = "stylesheet" href = "../../css/iconfont.css" > < link rel = "stylesheet" href = "../../css/app.css" > < title >红包设置</ title > < script > $(document).ready( function(){ $(".mui-input-row input").keyup(function(){ var value2 = $(this).parent().siblings().find("input").val(); if( this.value !=""&& value2 !=""){ $(".sc-btn button").attr("disabled",false); }else{$(".sc-btn button").attr("disabled",true);} }); }); </ script > < style > html,body{background: #fef9f4;} .mui-content{padding-top: 20px;background: #fef9f4;} .mui-input-row,.mui-input-row:last-child{width: 90%;margin: auto;background: #FFFFFF;margin-bottom: 10px;} .mui-input-row label{font-family: "微软雅黑";} h2{text-align: center;font-weight: normal;padding: 40px 0 0;} .sc-btn{width: 90%;margin: auto;padding-top: 80px;} .mui-btn-block{padding: 10px 0;} .mui-btn-blue{background: #a02227;border: none;} .mui-btn-blue.focus-active{background: #a02227;} </ style > </ head > < body > < div class = "mui-content" > < div class = "mui-input-row" > < label >红包个数</ label > < input type = "text" placeholder = "填写红包个数" > </ div > < div class = "mui-input-row" > < label >单个金额</ label > < input type = "text" placeholder = "填写神灯币" > </ div > < h2 >￥30个神灯币</ h2 > < div class = "sc-btn" > < button type = "button" class = "mui-btn mui-btn-blue mui-btn-block" disabled = "disabled" >付款</ button > </ div > </ div > </ body > </ html > |
效果预览：