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DOM学习笔记六
示例:邮件列表
<!DOCTYPE html> <html> <head lang="en"> <meta charset="UTF-8"> <title></title> <link rel="stylesheet" type="text/css" href=http://www.mamicode.com/"table.css" />><body> <table id="mailtable"> <tr> <th><input type="checkbox" name="all" onclick="checkAll(this)">全选</th> <th>发件人</th> <th>邮件名称</th> <th>邮件附属信息</th> </tr> <tr> <td><input type="checkbox" name="mail" /></td> <td>我是1号</td> <td>邮件1号</td> <td>信息1号</td> </tr> <tr> <td><input type="checkbox" name="mail" /></td> <td>我是2号</td> <td>邮件2号</td> <td>信息2号</td> </tr> <tr> <td><input type="checkbox" name="mail" /></td> <td>我是3号</td> <td>邮件3号</td> <td>信息3号</td> </tr> <tr> <td><input type="checkbox" name="mail" /></td> <td>我是4号</td> <td>邮件4号</td> <td>信息4号</td> </tr> <tr> <td><input type="checkbox" name="mail" /></td> <td>我是5号</td> <td>邮件5号</td> <td>信息5号</td> </tr> <tr> <th> <input type="checkbox" name="all" onclick="checkAll(this)"/>全选 </th> <th colspan="3"> <input type="button" value=http://www.mamicode.com/"全选" onclick="chcekAllButton(1)"/>>
校验
<!DOCTYPE html> <html> <head lang="en"> <meta charset="UTF-8"> </head> <body> <script type="text/javascript"> function check(name,reg,spanId,okinfor,errinfor){ var flag = false; var val = document.getElementsByName(name)[0].value; var oSpanNode = document.getElementById(spanId); oSpanNode.innerHTML=(reg.test(val))?(flag=true,"√".fontcolor("green")):"X".fontcolor("red"); return flag; } //校验用户名 function checkuser(){ var reg = /^[a-z]{4}$/;//注意是正则 return check("user",reg,"userspan"); } //校验密码 function checkPsw(){ var reg = /^\d{4}$/i; return check("psw",reg,"pswspan"); } //校验邮件 function checkMail(){ var reg = /^\w+@\w+(\.\w+)+$/i; return check("mail",reg,"mailspan"); } //确定密码 function checkrePsw(){ //只要判断密码是否一致 //获取密码框内容 var flag = false; var pass = document.getElementsByName("psw")[0].value; //获取确认密码框内容 var repass = document.getElementsByName("repsw")[0].value; //获取确认密码的span var ospanNode = document.getElementById("repswspan"); // alert(pass+" : "+repass); if(pass==repass) { ospanNode.innerHTML = "√".fontcolor("green"); flag = true; }else{ ospanNode.innerHTML = "X".fontcolor("red"); } return flag; } function checkform(){ return checkuser() && checkPsw() && checkrePsw() && checkMail(); //在校验一次,以防校验通过后又改密码 } function mySubmit(){ var oFormNode = document.getElementById("usersubmit"); if(checkuser() && checkPsw() && checkrePsw() && checkMail()) oFormNode.submit(); } </script> <form id="usersubmit" onsubmit="return checkform()"><!--返回false,终止数据提交--> 用户名称: <input type="text" name="user" onblur="checkuser()" /> <span id="userspan"></span> <br/><br/> 输入密码:<input type="text" name="psw" onblur="checkPsw()" /> <span id="pswspan"></span><br/><br/> 确认密码:<input type="text" name="repsw" onblur="checkrePsw()"/> <span id="repswspan"></span><br/><br/> 邮件地址:<input type="text" name="mail" onblur="checkMail()"/> <span id="mailspan"></span><br/><br/> <input type="submit" value=http://www.mamicode.com/"提交" />
>示例—问卷调查
<!DOCTYPE html> <html> <head lang="en"> <meta charset="UTF-8"> <title></title> <style type="text/css"> #contectid{ display: none; } #noul{ list-style: none; margin: 0px; } .close{ display: none; } .open{ display: block; } </style> </head> <body> <!-- 单选按钮演示 1.是否参与问卷调查 2.性格测试 --> <script type="text/javascript"> function showResult(){ //1.判断是否参与选择,获取所有no1的radio,并判断checked状态 var oNo1Node = document.getElementsByName("no1"); var flag = false; var val; for(var i = 0;i<oNo1Node.length;i++){ if(oNo1Node[i].checked){ flag = true; val = oNo1Node[i].value; break; } } if(!flag){ document.getElementById("errInformation").innerHTML="没有答案被选中!".fontcolor("red"); return; } if(1<=parseInt(val) && parseInt(val)<=3){ document.getElementById("res_1").className="open";//1只要显示了,2就不要显示 document.getElementById("res_2").className="close"; }else{ document.getElementById("res_2").className="open"; document.getElementById("res_1").className="close"; } } </script> <h2>欢迎参加性格测试:</h2> <div> <h3><span>No.1:您喜欢什么?</span></h3> <ul id="noul"> <li><input type="radio" name="no1" value=http://www.mamicode.com/"1"/>A>
下拉菜单<!DOCTYPE html> <html> <head lang="en"> <meta charset="UTF-8"> <title></title> <style type="text/css"> .clrclass{ height: 50px; width: 50px; float: left; margin-right: 20px ; } #txt{ clear: left; margin-top:50px; } .selClass{ width: 100px; } </style> </head> <body> <script type="text/javascript"> function Changecolor(node){ // alert(node.style.backgroundColor); var color = node.style.backgroundColor; document.getElementById("txt").style.color = color; } </script> <div class="clrclass" id="clr1" style="background-color: red" onclick="Changecolor(this)"></div> <div class="clrclass" id="clr2" style="background-color: yellow" onclick="Changecolor(this)"></div> <div class="clrclass" id="clr3" style="background-color: blue" onclick="Changecolor(this)"></div> <div id="txt"> 需要显示效果的文字</br> 需要显示效果的文字</br> 需要显示效果的文字</br> 需要显示效果的文字</br> </div> <hr/> <script type="text/javascript"> function Changecolor2(){ var oselectNode = document.getElementsByName("selectcolor")[0]; //如何确定选择是哪种颜色,select API var ooptinNodes = oselectNode.options;//获取所有的option // alert(oselectNode.selectedIndex);//被选中颜色的索引 // alert(oselectNode.options[oselectNode.selectedIndex].innerHTML); var color = oselectNode.options[oselectNode.selectedIndex].value; document.getElementById("txt").style.color = color; } </script> <select name="selectcolor" onchange="Changecolor2()"> <option value=http://www.mamicode.com/"black">选择颜色>
添加和删除附件<!DOCTYPE html> <html> <head lang="en"> <meta charset="UTF-8"> <title></title> <style type="text/css"> table a:link,table a:visited{ color: #0066FF; text-decoration: none; } table a:hover{ color: red; } </style> <script type="text/javascript"> function addFile(){ var oTableNode = document.getElementById("fileid"); var oTrNode = oTableNode.insertRow(); var oTdNode_file = oTrNode.insertCell();//添加文件的单元格 var oTdNode_dele = oTrNode.insertCell();//删除文件的单元格 oTdNode_file.innerHTML = "<input type='file' />"; //oTdNode_dele.innerHTML = "<a href='javascript:void(0)' onclick='deleteFile(this)'> 删除附件 </a>"; oTdNode_dele.innerHTML = "<img src='1000.jpg' alt='删除文件' onclick='deleteFile(this)'>"; } function deleteFile(node){ var oTrNode = node.parentNode.parentNode; oTrNode.parentNode.removeChild(oTrNode); } </script> </head> <body> <table id="fileid"> <tr> <td> <a href="javascript:void(0)" onclick="addFile()">添加附件</a> </td> </tr> <!-- //点击添加文件,才显示 <tr> <td> <input type="file"/> </td> <td> <a href="javascript:void(0)" onclick="deleteFile()"></a> </td> </tr> --> </table> </body> </html>
表单校验—涉及的事件和信息提示方式&&正则表达式&&提交校验<!DOCTYPE html> <html> <head lang="en"> <meta charset="UTF-8"> </head> <body> <script type="text/javascript"> function checkuser(){ var flag = false; // alert("ni"); var oUserNode = document.getElementsByName("user")[0]; var oSpanNode = document.getElementById("userspan"); var name = oUserNode.value; //定义正则表达式 var reg = new RegExp("^[a-z]{4}$","i");//头尾一共4个字母,i忽略大小写 //reg = new RegExp("^[0-9]{4}$");//必须4个数字 // reg = /^[0-9]{4}$/;//第二种定义格式/..../,因为不是字符串,不需要再次转义,比如\d,在这 //种方式中直接写\d,即可 // alert(oUserNode.value); //实例校验,test方法,判断是否符合正则,match,返回的不是boolean oSpanNode.innerHTML=(reg.test(name))? ("√".fontcolor("green"),flag=true):"X".fontcolor("red"); return flag; } //form的onsubmit事件,提交事件处理 function checkform(){ //如果用户名正确,才允许提交 return checkuser(); } function mySubmit(){ var oFormNode = document.getElementById("usersubmit"); if(checkuser()) oFormNode.submit();//form的提交方法 } </script> <form id="usersubmit" onsubmit="return checkform()"><!--返回false,终止数据提交--> <!--自动校验,光标在文本框中,是获取焦点事件onblur--> 用户名称: <input type="text" name="user" onblur="checkuser()" /> <span id="userspan"></span> <br/><br/> 输入密码:<input type="text" name="psw" ><br/><br/> <input type="submit" value=http://www.mamicode.com/"提交" />
>DOM学习笔记六
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