index.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta name="viewport" content="width=device-width,initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, user-scalable=no"/>
    <link rel="shortcut icon" href=images/favicon.ico type=image/x-icon>
    <meta charset="UTF-8">
    <title>百度</title>
    <script src="main.js"></script>
</head>
<body>
<div id="container">
    <img draggable="false" id="logo"/>
    <div id="search_box">
        <input onkeypress="if(checkKey(event)===13) searchWd();" type="text" oninput="getRet();" id="search_input" onfocus="showSearchBoard(true)" onfocusout="showSearchBoard(false)">
        <button id="search_btn"  onclick='searchWd();'  type="submit" style="">百度一下</button>
        <div id="clear" onclick="document.getElementById('search_input').value='';getRet();"></div>
    </div>
    <div id="ret">
        <ul id="ret_caontainer" ></ul>
    </div>
    <div id="history">
        <ul id="history_caontainer" ></ul>
        <div id="clear_history" onclick="searchHistory('del_all');document.getElementById('history_caontainer').innerHTML='';this.innerHTML='';document.getElementById('history').style.display='none';"><span>清空历史</span></div>
    </div>
</div>
</body>
</html>