java练习题(六)

*{
                margin:0px auto;
                padding:0px;
                }
            /*#date{
                200px;
                height:20px;
                }*/
                
            #wai{
                500px;
                height:500px;
                }
            #zuo{
                float:left;
                200px;
                height:500px;
                }
            #zhong{
                float:left;
                100px;
                height:500px;
                }
            #you{
                float:left;
                200px;
                height:500px;
                }
        </style>
    </head>
    
    <body>
        <!--<div id="date"></div>-->
        <div id="wai">
            <div id="zuo">
                <select multiple="multiple" id="znr" style="200px; height:200px;">
                    <option value="山东">山东</option>
                    <option value="淄博">淄博</option>
                    <option value="张店">张店</option>
                </select>
            </div>
            <div id="zhong">
                <div style="margin-left:25px; margin-top:20px;"><input type="button" value=">>" style="50px;" onclick="Moveall()" /></div>
                <div style="margin-left:25px; margin-top:20px;"><input type="button" value=">" style="50px;" onclick="Moveone()"/></div>
            </div>
            <div id="you">
                <select id="ynr" multiple="multiple" style="200px; height:200px;"> 
                </select>
            </div>
        </div>
        
    </body>
    <script type="text/javascript">
        /*window.setInterval("Time()",1);
        function Time()
        {
            var date = new Date();
            
            var n = date.getFullYear();
            var y = date.getMonth()+1;
            var r = date.getDate();
            var x = date.getHours();
            var f = date.getMinutes();
            var m = date.getSeconds();
            var h = date.getMilliseconds() //获取毫秒
            
            var str = "当前时间:"+n+"年"+y+"月"+r+"日"+x+":"+f+":"+m+":"+h;
            document.getElementById("date").innerHTML = str;
            //document.all.date.innerHTML = str;    
        }*/
        
        //Moveone();
        function Moveone()
        {
            var left = document.getElementById("znr");
            var right = document.getElementById("ynr");
            var lz = left.value;
            
            var str;
            str ="<option value='"+lz+"'>"+lz+"</option>";
            
            var bs=0;
            /*if(right.value==left.value)
            {
                bs=1;
                alert("jjjjj");    
            }
            if(bs==0)
            {
                right.innerHTML = right.innerHTML+str;        
            }*/

            for(var i=0;i<right.childNodes.length;i++)
            {
                if(right.childNodes.item(i).text == lz)
                {
                    bs = 1;    
                }
            }
            if(bs==0)
            {
                right.innerHTML = right.innerHTML+str;        
            }
            //right = document.write(str);    
        }
        
        function Moveall()
        {
            var left = document.getElementById("znr");
            var right = document.getElementById("ynr");
            
            right.innerHTML = left.innerHTML;    
        }
    </script>

原文地址:https://www.cnblogs.com/haohaizi1/p/7744180.html