计算器.txt

JavaScript特效（新）这里有许多的JAVA特效.供学者参考

<SCRIPT LANGUAGE="JavaScript">
function compute(form) {
   if (confirm("你确定吗?"))
      form.result.value = eval(form.expretion.value)
   else
      alert("Please come back again.")
}
</SCRIPT>
<FORM>
填写一个算术式: 
<INPUT TYPE="text" NAME="expretion" SIZE=15 > 
<INPUT TYPE="button" VALUE="计算" ONCLICK="compute(this.form)">&nbsp; 
结果：<INPUT TYPE="text" NAME="result" SIZE=15 >
<BR>
</FORM>