JS一个简单的注册页面实例
程序员文章站
2022-04-29 08:27:12
如下所示:
如下所示:
<!doctype html> <html> <head> <meta charset="utf-8"> <title></title> </head> <script src="js/jquery-1.8.0.min.js"></script> <script> // $(function(){ // $("input[name='uname']").blur(function(){ // var unamestr = $(this).val(); // var regstr = /^[\u4e00-\u9fa5]{2,4}$/;//2到4位汉字 // // }); // }); function checkname(){ var regstr = /^[\u4e00-\u9fa5]{2,4}$/; //^匹配开始 $匹配结束,2到4位汉字 var namestr = document.regform.uname.value; if(!regstr.test(namestr)){ x = document.getelementbyid("errorname").innerhtml="必须2-4位汉字"; // x.style.color="green"; return false; } x=document.getelementbyid("errorname").innerhtml="格式正确"; // x.style.color="red"; return true; } function checkpass(){ var regstr = /^\w{6,8}$/;// ^匹配开始 $匹配结束 \w表示数字字母下划线 var passstr = document.regform.upass.value; if(!regstr.test(passstr)){ document.getelementbyid("errorpwd").innerhtml="必须是6-8位数字,字母或下划线"; return false; } document.getelementbyid("errorpwd").innerhtml="格式正确"; return true; } function checkpass2(){ var passstr = document.regform.upass.value; var passstr2 = document.regform.upass2.value; // alert("fds"); if(passstr==passstr2){ document.getelementbyid("errorpwd2").innerhtml="两次密码输入一致"; return true; } document.getelementbyid("errorpwd2").innerhtml="两次密码输入不一致"; return false; } function checkform(){ if(checkname()&&checkpass()&&checkpass2()) return true; return false; } var citylist = new array(); citylist[0] = ["海淀区","朝阳区","东城区"]; citylist[1] = ["石家庄","邢台","邯郸","保定"]; citylist[2] = ["郑州","开封","洛阳"]; function changecity(prov){ //清空选项框中的选项 document.regform.selcity.innerhtml = ""; if(prov == "0"){ document.regform.selcity.innerhtml = "<option value='0'>选择城市</option>"; return; } var provindex = parseint(prov)-1; var citys = citylist[provindex]; var optionsstr = ""; for(var i = 0; i < citys.length; i++) { var city = citys[i]; optionsstr += "<option value='" + city + "'>" + city + "</option>"; } document.regform.selcity.innerhtml = optionsstr; } </script> <style> body { font-size: 14px; } #home { width: 600px; height: 300px; background-color: aquamarine; margin: auto;/*div居中*/ margin-top: 50px; padding-top: 20px; } .dl1 { clear: both; } .dl1 dt { width: 150px; float: left; height: 30px; line-height: 30px; text-align: right; } .dl1 dd { padding-top: 8px; float: left; } #div1{ padding-top: 45px; width: 120px; margin: auto; } h1{ text-align: center; } </style> <body> <div id="home"> <h1>用户注册</h1> <form action="index.html" name="regform" method="post" onsubmit="return checkform()"> <dl class="dl1"> <dt>用户姓名 : </dt> <dd><input type="text" name="uname" onblur="checkname()" /></dd> <dd id="errorname"></dd> </dl> <dl class="dl1"> <dt>用户密码 : </dt> <dd><input type="password" name="upass" onblur="checkpass()"/></dd> <dd id="errorpwd"></dd> </dl> <dl class="dl1"> <dt>再次输入密码 : </dt> <dd><input type="password" name="upass2" onblur="checkpass2()" /></dd> <dd id="errorpwd2"></dd> </dl> <dl class="dl1"> <dt>用户性别 : </dt> <dd> <input type="radio" name="sex" checked="checked" />男 <input type="radio" name="sex" />女 </dd> <dd id="errorpwd"></dd> </dl> <dl class="dl1"> <dt>用户爱好 : </dt> <dd> <input type="checkbox" />上网 <input type="checkbox" />读书 <input type="checkbox" />唱歌 </dd> </dl> <dl class="dl1"> <dt>用户籍贯 : </dt> <dd> <select name="selprov" onchange="changecity(this.value)"> <option value="0">选择省份</option> <option value="1">北京</option> <option value="2">河北</option> <option value="3">河南</option> </select> </dd> <dd> <select name="selcity"> <option value="0">选择城市</option> </select> </dd> </dl> <div id="div1"> <input type="submit" value="提交"/> <input type="reset" value="重置"/> </div> </form> </div> </body> </html>
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