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  • JavaScript实现自适应窗口大小的网页

    <!DOCTYPE html>
    <html>
    <head>
        <meta http-equiv="content-type" content="text/html; charset=utf-8">
        <meta http-equiv="imagetoolbar" content="no">
        <meta name="viewport" content="width=device-width,inital-scale=1"/>
        <title>Login</title>
        <style type="text/css">
    body{
        text-align: left;
        background-color: F6F6F6;
        background-attachment: fixed;
    }
    
    #imgcenter{
        position:relative;
        height: auto;
        50%;
        left:20%;
        top:250px;
    }
    #center{
        position:relative;
        height: auto;
        50%;
        left:20%;
        top:220px;
    }
    
    #account{
        position:relative;
        height: auto;
        left:60%;
        top:-110px;
        padding:2%;
        50%;
    }
    
    #pwd{
        position:relative;
        height: auto;
        left:60%;
        top:-100px;
        padding:2%;
         50%;
    }
    
    #login{
        position:relative;
        height: auto;
        left:60%;
        top:-95px;
        padding:1%;
         25%;
    }
    #logo{
        padding:3%;
         50%;
        height: auto;
    }
    #div_forgetpwd{
        position:relative;
        height: 30%;
        left: 90%;
        top:-115px;
         25%;
        font-size: 1pt;   
        white-space:nowrap;
    }
    #div_forgetpwd a{
        text-decoration: none;
        margin: auto;
    }
    #div_forgetpwd a:hover{
        text-decoration: underline;
        margin: auto;
    }
    .Clew{
        position:relative;
        height: 15px;
        left:-10%;
        top:-80%;
        padding:2% 50%;
        white-space:nowrap;
        color: #FFFFD5;
        font-weight: bold;
        font-family: century gothic, arial;
        background: #FCBE47;
        border-top: 2px solid #db6e3c;
        border-bottom: 2px solid #db6e3c;
    }
    
    </style>
        <script type="text/javascript" src="E:MyProjecthtmlKServerjquery-1.4.2.min.js"></script>
        <script type="text/javascript">
    //error clew
    var userFlag=0;
    var pwdFlag=0;
    $().ready(function() {
        $("form :input").blur(function() {
            var $parent = $(this).parent();
            $parent.find(".clew").remove();
            if($(this).is(".username")) {
                if(this.value=="" || this.value.length < 0) {
                    var errorMsg = "Please enter your account.";
                    $parent.append("<span class='clew Clew'>"+errorMsg+"</span>");
                }else
    		userFlag=1;
            }
    
            if($(this).is(".password")) {
                if(this.value=="" || this.value.length < 0) {
                    var errorMsg = "Please enter your password.";
                    $parent.append("<span class='clew Clew'>"+errorMsg+"</span>");
                }else
    		pwdFlag=1;
            }       
    
        }).keyup(function() {
            $(this).triggerHandler("blur");
        }).focus(function() {
            $(this).triggerHandler("blur");
        });
    });
    //提交检验
    function validate_form(thisform){
        with (thisform){
            if (userFlag==0||pwdFlag==0){
                username.focus();
                return false;
            }
        }
    }
    </script>
    </head>
    <body bgcolor="#F6F6F6" >
    <!--
    <form  action="#" method="get" name="form" id="form">
     当前窗口高度:
     <input type="text" name="availHeight" size="6">
     <br>
     当前窗口宽度:
     <input type="text" name="availWidth" size="6">
     <br>
     </form>
    -->
        <div id="imgcenter">
            <img src="E:MyProjecthtmlKServerloginlogin.png" id="logo" align="left" ></div>
        <div id="center">
            <form method="post" action="db.html" onsubmit="return validate_form(this);">
                <input type=text name="username" value="请输入用户名.." id="account"
                class="username">
                <br>
                <input type=password name="password" value=".." id="pwd" class="password">
                <br>
                <input type=submit value="登录" id="login">
    
                <div id="div_forgetpwd">                
                    <a href="E:MyProjecthtmlKServer
    egister
    egister.html" >注册帐号</a>
                    <a href="E:MyProjecthtmlKServerforget_pwdforget_pwd.html" >忘记密码</a>
                </div>
                
            </form>
        </div>
        <script type="text/javascript">
        //更改元素CSS属性
        function set(){
            var setImgDiv = document.getElementById("imgcenter");
            setImgDiv.style.top = "150px";
            setImgDiv.style.left = "36%";
            var setTextDiv = document.getElementById("center");
            setTextDiv.style.top = "280px";
            setTextDiv.style.left = "8%";
            var setLogo=document.getElementById("logo");
            setLogo.style.height="100px";
            setLogo.style.width="240px";
            var setAccount=document.getElementById("account");
            setAccount.style.height="15px";
            setAccount.style.width="240px";
            var setPwd=document.getElementById("pwd");
            setPwd.style.height="15px";
            setPwd.style.width="240px";
            var setLogin=document.getElementById("login");
            setLogin.style.height="25px";
            setLogin.style.width="100px";
            var setForgetPwd=document.getElementById("div_forgetpwd");
            setForgetPwd.style.width="100px";
            setForgetPwd.style.left="100%";
        }
        function reSet(){
            var reSetImgDiv = document.getElementById("imgcenter");
            reSetImgDiv.style.top = "250px";
            reSetImgDiv.style.left = "20%";
            var reSetTextDiv = document.getElementById("center");
            reSetTextDiv.style.top = "220px";
            reSetTextDiv.style.left = "20%";
            var reSetLogo=document.getElementById("logo");
            reSetLogo.style.height="auto";
            reSetLogo.style.width="50%";
            var reSetAccount=document.getElementById("account");
            reSetAccount.style.height="auto";
            reSetAccount.style.width="50%";
            var reSetPwd=document.getElementById("pwd");
            reSetPwd.style.height="auto";
            reSetPwd.style.width="50%";
            var reSetLogin=document.getElementById("login");
            reSetLogin.style.height="auto";
            reSetLogin.style.width="25%";
            var reSetForgetPwd=document.getElementById("div_forgetpwd");
            reSetForgetPwd.style.width="100px";
            reSetForgetPwd.style.left="90%";
        }
        function setSizeMid(){
            var setSizeMidImgDiv = document.getElementById("imgcenter");
            setSizeMidImgDiv.style.top = "150px";
            setSizeMidImgDiv.style.left = "22%";
            var setSizeMidTextDiv = document.getElementById("center");
            setSizeMidTextDiv.style.top = "280px";
            setSizeMidTextDiv.style.left = "-35px";
            var setSizeMidLogo=document.getElementById("logo");
            setSizeMidLogo.style.height="100px";
            setSizeMidLogo.style.width="240px";
            var setSizeMidAccount=document.getElementById("account");
            setSizeMidAccount.style.height="15px";
            setSizeMidAccount.style.width="240px";
            var setSizeMidPwd=document.getElementById("pwd");
            setSizeMidPwd.style.height="15px";
            setSizeMidPwd.style.width="240px";
            var setSizeMidLogin=document.getElementById("login");
            setSizeMidLogin.style.height="25px";
            setSizeMidLogin.style.width="80px";
            var setSizeMidForgetPwd=document.getElementById("div_forgetpwd");
            setSizeMidForgetPwd.style.width="80px";
            setSizeMidForgetPwd.style.left="110%";
        }
        function setSizeMini(){
            var setSizeMiniImgDiv = document.getElementById("imgcenter");
            setSizeMiniImgDiv.style.top = "150px";
            setSizeMiniImgDiv.style.left = "6%";
            var setSizeMiniTextDiv = document.getElementById("center");
            setSizeMiniTextDiv.style.top = "280px";
            setSizeMiniTextDiv.style.left = "-60px";
            var setSizeMiniLogo=document.getElementById("logo");
            setSizeMiniLogo.style.height="100px";
            setSizeMiniLogo.style.width="240px";
            var setSizeMiniAccount=document.getElementById("account");
            setSizeMiniAccount.style.height="15px";
            setSizeMiniAccount.style.width="240px";
            var setSizeMiniPwd=document.getElementById("pwd");
            setSizeMiniPwd.style.height="15px";
            setSizeMiniPwd.style.width="240px";
            var setSizeMiniLogin=document.getElementById("login");
            setSizeMiniLogin.style.height="25px";
            setSizeMiniLogin.style.width="80px";
            var setSizeMiniForgetPwd=document.getElementById("div_forgetpwd");
            setSizeMiniForgetPwd.style.width="80px";
            setSizeMiniForgetPwd.style.left="125%";
        }
        
        //获取当前窗口尺寸
         var winWidth = 0;
         var winHeight = 0;
         function findDimensions() //函数:获取尺寸
         {
            //获取窗口宽度
            if (window.innerWidth)
            winWidth = window.innerWidth;
            else if ((document.body) && (document.body.clientWidth))
            winWidth = document.body.clientWidth;
            //获取窗口高度
            if (window.innerHeight)
            winHeight = window.innerHeight;
            else if ((document.body) && (document.body.clientHeight))
            winHeight = document.body.clientHeight;
            //通过深入Document内部对body进行检测,获取窗口大小
            if (document.documentElement  && document.documentElement.clientHeight && document.documentElement.clientWidth)
            {
            winHeight = document.documentElement.clientHeight;
            winWidth = document.documentElement.clientWidth;
        }
        //结果输出至两个文本框
        if(winWidth<420||winHeight<537)
            setSizeMini();
        else if(420<=winWidth&&winWidth<=595)
            setSizeMid();
        else if(595<winWidth&&winWidth<850||537<winHeight&&winHeight<590)
            set();
        else
            reSet();
        }    
         findDimensions();
         //调用函数,获取数值
         window.onresize=findDimensions;
     </script>
    </body>
    </html>
    

      

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  • 原文地址:https://www.cnblogs.com/chars/p/4999169.html
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