?? ch4_examp4.htm
字號:
<HTML>
<HEAD>
<SCRIPT LANGUAGE=JavaScript>
function fix(fixNumber, decimalPlaces)
{
var div = Math.pow(10,decimalPlaces);
fixNumber = Math.round(fixNumber * div) / div;
return fixNumber;
}
</SCRIPT>
</HEAD>
<BODY>
<SCRIPT LANGUAGE=JavaScript>
var number1 = prompt("Enter the number with decimal places you want to fix","");
var number2 = prompt("How many decimal places do you want?","");
document.write(number1 + " fixed to " + number2 + " decimal places is: ");
document.write(fix(number1,number2));
</SCRIPT>
</BODY>
</HTML>
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