本文實例為大家分享了jQuery實現只顯示年份下拉框的具體代碼，供大家參考，具體內容如下
代碼:
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
|
<!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Document</title> <script src="https://lib.baomitu.com/jquery/3.5.1/jquery.js"></script></head><body> <div id="main" style="width: 600px;height:400px;"></div> <select name="" id="start" onchange="chooseYear2()"> <option value="">1949</option> </select> <select name="" id="end"> <option value=""></option> </select> <script type="text/javascript"> var date = new Date(); var y = date.getFullYear() function chooseYear1() { for (let i = 1949; i<=y; i ++) { let start = document.getElementById("start"); let year = Number(start.lastElementChild.innerHTML) + 1; var myOption = document.createElement("option"); myOption.innerHTML = year; start.appendChild(myOption); } } chooseYear1(); function chooseYear2() { //如果你想讓起始年份下拉框和結束年份下拉框都顯示從1949至今的年份,那么寫同樣的循環即可: let end = Number($("#start").find("option:selected").val()); let start = document.getElementById("end"); start.firstElementChild.innerHTML=end; var myOption = document.createElement("option"); for (let i = end; i<=y; i ++) { let start = document.getElementById("end"); let year = Number(start.lastElementChild.innerHTML) + 1; var myOption = document.createElement("option"); myOption.innerHTML = year; start.appendChild(myOption); } } </script></body></html> |
只顯示年份的下拉框效果：
以上就是本文的全部內容，希望對大家的學習有所幫助，也希望大家多多支持服務器之家。
原文鏈接：https://blog.csdn.net/weixin_42952297/article/details/111567326
