我想创建一个日历,我有两个问题。在Javascript中创建日历(Html)
- 月份不会显示为文本,而是显示为数字。
- 当我更改月份时,日子也不会更新。几个月有不同的天数,因此选择的天数选择需要根据月份选择中的选择进行更新。
日/月/年。
下面是HTML代码:
<form>
<select id="day" name="day">
</select>
<select id ="month" onchange = "changeDays(this)" name="month" >
</select>
<select id="year" name="year">
</select>
</form>
</div>
下面是Javascript代码:
setCalendar('day',1, 31, false);
setCalendar('month',1, 12, false);
setCalendar('year',1910, 2017, false);
function setCalendar(id, min, max, logic){
if(logic){
removeOptions(id);
}
var monthsarray = ["January", "February","March" ,"April" ,"May" ,"June" ,"July" ,"August" ,"September", "October", "November" , "December"];
for (i = min; i <= max; i++){
select = document.getElementById(id);
var opti = document.createElement("option");
opti.value = i;
opti.text = id === "day" || "year" ? i.toString() : monthsarray[i-1];
select.add(opti);
}
}
function changeDays(SelectObject){
switch(SelectObject){
case 1:
//January
setCalendar('day',1,31,true);
break;
case 2:
//February
setCalendar('day',1,28,true);
break;
case 3:
//March
setCalendar('day',1,31,true);
break;
case 4:
//April
setCalendar('day',1,30,true);
break;
case 5:
//May
setCalendar('day',1,31,true);
break;
case 6:
//June
setCalendar('day',1,30,true);
break;
case 7:
//July
setCalendar('day',1,31,true);
break;
case 8:
//August
setCalendar('day',1,31,true);
break;
case 9:
//September
setCalendar('day',1,30,true);
break;
case 10:
//October
setCalendar('day',1,31,true);
break;
case 11:
//November
setCalendar('day',1,30,true);
break;
case 12:
//December
setCalendar('day',1,31,true);
break;
}
}
function removeOptions(selectObject)
{
var i;
for(i = selectObject.options.length - 1 ; i >= 0 ; i--)
{
selectObject.remove(i);
}
}
'ID ===“日“|| “year”'错了:应该是'id ===“day”|| id ===“year”' – Pointy
您确定不想使用该工作中已有的几千个插件之一吗? – Dinei
你不应该把'this'作为参数传递给那个函数。它应该已经可以访问。 –