📄 computer.html
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE> 计算器 </TITLE>
<link href="tao.css" type="text/css" rel="Stylesheet">
<SCRIPT LANGUAGE="JavaScript" src="tao.js"></SCRIPT>
</HEAD>
<BODY>
<FORM name="testForm" action="Computer.html">
<TABLE border="1">
<TR>
<TD colspan="4">
<TABLE border="0" align="left">
<TR>
<TD><a href="">
编辑 </a></TD>
<TD><a href="">查看 </a></TD>
<TD><a href="">帮助</a></TD>
<TD> </TD>
</TR>
</TABLE>
</TD>
</TR>
<TR>
<TD colspan="4">
<INPUT TYPE="text" NAME="textContext" size="33">
</TD>
</TR>
<TR>
<TD><input type="button" value="Null" onclick="onNull();"></TD>
<TD><input type="button" value="Backspace" onclick="onBackspace();"></TD>
<TD><input type="button" value=" CE " onclick="onClearCE();"></TD>
<TD><input type="button" value=" C " onclick="onClearC();"></TD>
</TR>
<TR>
<td colspan="4">
<TABLE border="1">
<TR>
<TD><input type="button" value=" MC "></TD>
<TD><input type="button" value=" 7 " onclick="onClickNum(7);"></TD>
<TD><input type="button" value=" 8 " onclick="onClickNum(8);"></TD>
<TD><input type="button" value=" 9 " onclick="onClickNum(9);"></TD>
<TD><input type="button" value=" / " onclick="onClickAccumulate('/');"></TD>
<TD><input type="button" value="sqrt" onclick="onSqrt();"></TD>
</TR>
<TR>
<TD><input type="button" value=" MR "></TD>
<TD><input type="button" value=" 4 " onclick="onClickNum(4);"></TD>
<TD><input type="button" value=" 5 " onclick="onClickNum(5);"></TD>
<TD><input type="button" value=" 6 " onclick="onClickNum(6);"></TD>
<TD><input type="button" value=" * " onclick="onClickAccumulate('*');"></TD>
<TD><input type="button" value=" % " onclick="onClearC();"></TD>
</TR>
<TR>
<TD><input type="button" value=" MS "></TD>
<TD><input type="button" value=" 1 " onclick="onClickNum(1);"></TD>
<TD><input type="button" value=" 2 " onclick="onClickNum(2);"></TD>
<TD><input type="button" value=" 3 " onclick="onClickNum(3);"></TD>
<TD><input type="button" value=" - " onclick="onClickAccumulate('-');"></TD>
<TD><input type="button" value=" 1/x" onclick="onFenNum();"></TD>
</TR>
<TR>
<TD><input type="button" value=" M+ "></TD>
<TD><input type="button" value=" 0 " onclick="onClickNum(0);"></TD>
<TD><input type="button" value="+/-" onclick="onChangeTag();"></TD>
<TD><input type="button" value=" . " onclick="onClickType1('.');"></TD>
<TD><input type="button" value=" + " onclick="onClickAccumulate('+');"></TD>
<TD><input type="button" value=" == " onclick="onClickAccumulate('=');"></TD>
</TR>
</TABLE>
</td>
</TR>
</TABLE>
</FORM>
</BODY>
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