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呼叫iframe中的按鈕點選

index.html

<html>
<head><meta http-equiv="content-type" content="text/html;charset=utf-8">
<script type="text/javascript">
    function callChild(){
            //myFrame.window.say();
            myFrame.window.document.getElementById("button").click();
             //var x= myFrame.window.document.getElementById("myen").innerHTML="kkkkk";//可以用
}
</script></head> <body> <input id="button" type="button" value="呼叫child.html中按鈕的點選" onclick="callChild()"/><br><iframe name="myFrame" src="child.html" width="800"></iframe> </body> </html>

child.html

<html>
<head><meta http-equiv
="content-type" content="text/html;charset=utf-8">
</head> <script type="text/javascript"> function inenword(){ var x=document.getElementById("enword").value; document.getElementById("myen").innerHTML=x; } </script> <h1>查詢單詞</h1> 請輸入英文單詞:<input type="text" name
="enword" id="enword">
<input type="button" id="button" value="查詢" onclick="inenword()"> <br>您要查詢的英文是:<span id="myen"></span> </html>