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birthday判断

2016-07-12 08:19 369 查看

<!DOCTYPE html>
<html>
<head>
<meta
charset="UTF-8">
<title></title>
</head>
<body>
<input
type="text"
name="txt1" id="txt1"
value="" />
<input
type="text"
name="txt2" id="txt2"
value="" />
<input
type="text"
name="txt3" id="txt3"
value="" />
<input
type="button"
name="btn" id="btn"
value="验证" />
// 校验用户输入的生日，包括年、月、日。直到年、月、日都合法。
<script
type="text/javascript">

var
oTxt1 = document.getElementById("txt1");
var
oTxt2 = document.getElementById("txt2");
var
oTxt3 = document.getElementById("txt3");
var
oBtn = document.getElementById("btn");
oBtn.onclick
= function(){
var
year = parseInt(oTxt1.value);
var
month = parseInt(oTxt2.value);
var
day = parseInt(oTxt3.value);

if(parseInt(oTxt1.value)
!= parseFloat(oTxt1.value) || parseInt(oTxt2.value)
!= parseFloat(oTxt2.value) || parseInt(oTxt3.value)
!= parseFloat(oTxt3.value)){
alert("不成功");
}else if(year
<= 0 ||
year > 2016){
alert("不成功");
}else if(month
<= 0 ||
month > 12){
alert("不成功");
}else if(day
<= 0 ||
day > 31){
alert("不成功");
}else if
(month == 4 ||
month == 6 ||
month == 9 ||
month == 11) {
if
(day <= 0 ||
day > 30) {
alert("不成功");
}else{
alert("成功");
}
}else if(month
== 2 && (year %
400 == 0 || (year %
4 == 0 && year %
100 != 0))){
if(day
<= 0 ||
day > 29){
alert("不成功");
}else{
alert("成功");
}
}else if(month
== 2 && (year %
400 != 0 || !(year %
4 == 0 && year %
100 != 0))){
if(day
<= 0 ||
day > 28){
alert("不成功");
}else{
alert("成功");
}
}
else if
(month == 1 ||
month == 3 ||
month == 5 ||
month == 7 ||
month == 8 ||
month == 10 ||
month == 12) {
if
(day <= 0 ||
day > 31) {
alert("不成功");
}else{
alert("成功");
}
}
else{
alert("不成功");
}

}
</script>
</body>
</html>

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标签： 判断 js

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