<input type=button value=剪切 onclick=document.execCommand('Cut')>
<input type=button value=拷贝 onclick=document.execCommand('Copy')>
<input type=button value=粘贴 onclick=document.execCommand('Paste')>
<input type=button value=拷贝 onclick=document.execCommand('Copy')>
<input type=button value=粘贴 onclick=document.execCommand('Paste')>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>无标题文档</title>
</head><body>
<form> <p>
<input type=button value=粘贴>
</p>
<p>
<input type="text" >
</p>
</form>
</body>
</html>
<input type=button value=粘贴
onclick="this.form.txt.focus();document.execCommand('Paste')">
<input type="text" name=txt>
</form>