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javascript - Why does this report an error in Chrome but works fine in IE?

PHPz 2017-05-19 10:36:12

629

<html>
<head>
<meta charset="UTF-8">
<title>顯示或隱藏圖片</title>
</head>
<body>
    <img src="../assets/img/client_logo5.png" id="pic"><br>
    <input type="button" value="顯示圖片" onclick="pic.style.visibility='visible'">
    <input type="button" value="隱藏圖片" onclick="pic.style.visibility='hidden'">
</body>
</html>