biog1019的部落格

隨機變數選取按鈕

<form>
    </h1>你選了什麼?</h1>
            <input type="radio" name="camera" value="Canon" />Canon<br>
    <input type="radio" name="camera" value="Nikon" />Nikon<br>
    <input type="radio" name="camera" value="Sony" />Sony<br>
            </h1>你選了什麼?</h1>
    <input type="radio" name="aaa" value="Olympus" />Olympus<br>
    <input type="radio" name="aaa" value="Pentax" />Pentax<br>
    <input type="radio" name="aaa" value="others" />others<br>
    <input type="button" name="manipulator" value="將Sony設為選取" />
</form>
<script>
    var form01 = document.forms[0];
    var choiceSet1 = form01.camera;
    var form02 = document.forms[0];
    var choiceSet2 = form02.aaa;
    var manipulator = form01.manipulator;
    var n1=0;
             var n2=0;
    function setChoice1(num){choiceSet1[num].checked = true;}
    function setChoice2(num){choiceSet2[num].checked = true;}
    manipulator.onclick = function(){
var maxNum = 2;  
var minNum = 0;  
    n1= Math.floor(Math.random() * (maxNum - minNum + 1)) + minNum;  
   n2= Math.floor(Math.random() * (maxNum - minNum + 1)) + minNum;  

        setChoice1(n1);
                        setChoice2(n2);
    }
</script>