当我计算我的年龄时，下面的代码显示＆＃34; xxx天留给你的下一个生日＆＃34;。但是我想知道，某个生日还有多少天。 （即：我想知道我的30岁生日还有多少天。结果应该是这样的＆＃34; xxx天30岁生日＆＃34;而不是下一个生日。） 我需要做些什么改变？
function wr_document() {
var w = new Date();
var s_d = w.getDate();
var s_m = w.getMonth() + 1;
var s_y = w.getFullYear();
document.cir.len11.value = s_d;
document.cir.len12.value = s_m;
document.cir.len13.value = s_y;
}
function isNum(arg) {
var args = arg;
if (args == "" || args == null || args.length == 0) {
return false;
}
args = args.toString();
for (var i = 0; i < args.length; i++) {
if ((args.substring(i, i + 1) < "0" || args.substring(i, i + 1) > "9") && args.substring(i, i + 1) != ".") {
return false;
}
}
return true;
}
function checkday(aa) {
var val = aa.value;
var valc = val.substring(0, 1);
if (val.length > 0 && val.length < 3) {
if (!isNum(val) || val == 0) {
aa.value = "";
} else if (val < 1 || val > 31) {
aa.value = valc;
}
} else if (val.length > 2) {
val = val.substring(0, 2);
aa.value = val;
}
}
function checkmon(aa) {
var val = aa.value;
var valc = val.substring(0, 1);
if (val.length > 0 && val.length < 3) {
if (!isNum(val) || val == 0) {
aa.value = "";
} else if (val < 1 || val > 12) {
aa.value = valc;
}
} else if (val.length > 2) {
val = val.substring(0, 2);
aa.value = val;
}
}
function checkyear(aa) {
var val = aa.value;
var valc = val.substring(0, (val.length - 1));
if (val.length > 0 && val.length < 7) {
if (!isNum(val) || val == 0) {
aa.value = valc;
} else if (val < 1 || val > 275759) {
aa.value = "";
}
} else if (val.length > 4) {
aa.value = valc;
}
}
function checkleapyear(datea) {
if (datea.getYear() % 4 == 0) {
if (datea.getYear() % 10 != 0) {
return true;
} else {
if (datea.getYear() % 400 == 0)
return true;
else
return false;
}
}
return false;
}
function DaysInMonth(Y, M) {
with(new Date(Y, M, 1, 12)) {
setDate(0);
return getDate();
}
}
function datediff(date1, date2) {
var y1 = date1.getFullYear(),
m1 = date1.getMonth(),
d1 = date1.getDate(),
y2 = date2.getFullYear(),
m2 = date2.getMonth(),
d2 = date2.getDate();
if (d1 < d2) {
m1--;
d1 += DaysInMonth(y2, m2);
}
if (m1 < m2) {
y1--;
m1 += 12;
}
return [y1 - y2, m1 - m2, d1 - d2];
}
function calage() {
var curday = document.cir.len11.value;
var curmon = document.cir.len12.value;
var curyear = document.cir.len13.value;
var calday = document.cir.len21.value;
var calmon = document.cir.len22.value;
var calyear = document.cir.len23.value;
if (curday == "" || curmon == "" || curyear == "" || calday == "" || calmon == "" || calyear == "") {
alert("Please fill all the values and click 'Go'");
} else if (curday == calday && curmon == calmon && curyear == calyear) {
alert("Today your birthday & Your age is 0 years old")
} else {
var curd = new Date(curyear, curmon - 1, curday);
var cald = new Date(calyear, calmon - 1, calday);
var diff = Date.UTC(curyear, curmon, curday, 0, 0, 0) -
Date.UTC(calyear, calmon, calday, 0, 0, 0);
var dife = datediff(curd, cald);
document.cir.val.value = dife[0] + " years, " + dife[1] + " months, and " + dife[2] + " days";
var secleft = diff / 1000 / 60;
document.cir.val3.value = secleft + " minutes since your birth";
var hrsleft = secleft / 60;
document.cir.val2.value = hrsleft + " hours since your birth";
var daysleft = hrsleft / 24;
document.cir.val1.value = daysleft + " days since your birth";
//alert(""+parseInt(calyear)+"--"+dife[0]+"--"+1);
var as = parseInt(calyear) + dife[0] + 1;
var diff = Date.UTC(as, calmon, calday, 0, 0, 0) -
Date.UTC(curyear, curmon, curday, 0, 0, 0);
var datee = diff / 1000 / 60 / 60 / 24;
document.cir.val4.value = datee + " days left for your next birthday";
}
}
function color(test) {
for (var j = 7; j < 12; j++) {
var myI = document.getElementsByTagName("input").item(j);
//myI.setAttribute("style",ch);
myI.style.backgroundColor = test;
}
}
function color1(test) {
var myI = document.getElementsByTagName("table").item(0);
//myI.setAttribute("style",ch);
myI.style.backgroundColor = test;
}.cal-container {
width: 540px;
margin: 10px auto 0;
}
#age-calculator {
background: none repeat scroll 0 0 #DDDDDD;
border: 1px solid #BEBEBE;
padding-left: 20px;
}
.calc {
border-color: #AAAAAA #999999 #929292 #AAAAAA;
border-style: solid;
border-width: 1px 2px 2px 1px;
padding: 2px 30px 3px;
height: 27px;
}
.calc:active {
border-color: #AAAAAA #999999 #929292 #AAAAAA;
border-style: solid;
border-width: 1px;
}<title>Age calculator </title>
<body onload="wr_document()">
<div class="cal-container">
<div id="calculator-container">
<table border="0" cellpadding="0" cellspacing="0" style="width: 100%px;">
<tbody>
<tr>
<td valign="top">
<h1 style="padding-top: 10px;">
Age Calculator</h1>
<div class="descalign">
<span>Calculate your age in days, years, minutes, seconds. Know how many days are left for your next birthday.</span><br /><br />
</div>
<div id="age-calculator">
<table bgcolor="" border="0" cellpadding="0" cellspacing="4" style="width: 100%px;">
<tbody>
<tr>
<td colspan="2">
<table class="result" style="height: 100%px; width: 100%px;">
<tbody>
<tr>
<td>
<form name="cir">
<table cellpadding="3" cellspacing="0">
<tbody>
<tr>
<td colspan="2">
<br /> Today's Date is:
</td>
</tr>
<tr>
<td align="center" colspan="2">
Date -
<input class="innerc resform" name="len11" onkeyup="checkday(this)" size="2" type="text" value="" /> Month -
<input class="innerc resform" name="len12" onkeyup="checkmon(this)" size="2" type="text" value="" /> Year -
<input class="innerc resform" name="len13" onkeyup="checkyear(this)" size="4" type="text" value="" />
<br />
<br />
</td>
</tr>
<tr>
<td colspan="2"> Enter Your Date of Birth : </td>
</tr>
<tr>
<td align="center" colspan="2">
Date -
<input class="innerc resform" name="len21" onkeyup="checkday(this)" size="2" type="text" /> Month -
<input class="innerc resform" name="len22" onkeyup="checkmon(this)" size="2" type="text" /> Year -
<input class="innerc resform" name="len23" onkeyup="checkyear(this)" size="4" type="text" />
<br />
<br />
<input class="calc" name="but" onclick="calage()" type="button" value=" Go " />
<br />
<br />
</td>
</tr>
<tr>
<td align="center" class="form" width="30%">
<b> </b>
</td>
</tr>
</tbody>
</table>
<table>
<tbody>
<tr>
<td>
<b> Your Age is </b>
</td>
<td>
<input class="resform" name="val" readonly="" size="36" type="text" />
</td>
</tr>
<tr>
<td>
<b> Your Age in Days </b>
</td>
<td>
<input class="resform" name="val1" readonly="" size="36" type="text" />
</td>
</tr>
<tr>
<td>
<b> Your Age in Hours </b>
</td>
<td>
<input class="resform" name="val2" readonly="" size="36" type="text" /> (Approximate)
</td>
</tr>
<tr>
<td class="form">
<b> Your Age in Minutes </b>
</td>
<td>
<input class="resform" name="val3" readonly="" size="36" type="text" /> (Approximate)
</td>
</tr>
<tr>
<td> </td>
</tr>
<tr>
<td></td>
<td>
<input class="innerc resform" name="val4" readonly="" size="36" type="text" />
</td>
</tr>
</tbody>
</table>
</form>
</td>
</tr>
</tbody>
</table>
<br />
</td>
<td> </td>
</tr>
<tr>
<td align="right" colspan="2"> </td>
<td> </td>
</tr>
</tbody>
</table>
<br />
</div>
</td>
</tr>
</tbody>
</table>
</div>
</div>
</body>
答案 0 :(得分：0)
不清楚整个代码的用途，但根据您的问题，以下脚本可能对您有帮助。
// Let below variables store your birth date
var day = 13;
var month = 03;
var year = 1993;
var x = 30; // Finding 30th birthday
var xthBirthday = new Date((year + x), (month - 1), day); // As month starts with 0
var timeForXthBirthday = xthBirthday.getTime() - Date.now();
var noOfDaysForXthBirthday = Math.ceil(timeForXthBirthday / (1000 * 60 * 60 * 24)); // No. of days left for your xth birthday
document.write(noOfDaysForXthBirthday+" days left for your "+x+"<sup>th</sup> birthday.");
希望这有帮助。