本文实例为大家分享了JavaScript实现点击切换验证码及校验的具体代码,供大家参考,具体内容如下
效果:
代码:
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<!DOCTYPE html> < html > < head > < meta charset = "UTF-8" > < title ></ title > < style > div { width: 100px; height: 40px; background-color: red; color: #fff; text-align: center; line-height: 40px; font-size: 30px; font-weight: 900; user-select: none; } .show { position: absolute; left: 0; top: 0; right: 0; bottom: 0; margin: auto; width: 200px; height: 100px; background-color: pink; text-align: center; line-height: 100px; font-size: 40px; font-weight: 900; display: none; } </ style > </ head > < body > < div ></ div > < input type = "text" value = "请输入上图的验证码" /> < button >注册</ button > < div class = "show" >等待中。。。。</ div > < script type = "text/javascript" > //1000-9999 var div = document.getElementsByTagName("div"); var inp = document.getElementsByTagName("input")[0]; var btn = document.getElementsByTagName("button")[0]; div[0].innerHTML = ranFun(1000, 9999); inp.onclick = function () { this.value = "" } div[0].onclick = function () { this.innerHTML = ranFun(1000, 9999) } btn.onclick = function () { if (inp.value == div[0].innerHTML) { div[1].style.display = "block"; setTimeout(function () { location.href = "register.html" }, 3000) } else { alert('验证码错误') div[0].innerHTML = ranFun(1000, 9999); inp.value = "" } } function ranFun(a, b) { return Math.floor(Math.random() * (b - a + 1) + a) } </ script > </ body > </ html > |
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持服务器之家。
原文链接:https://blog.csdn.net/dongdongaa0/article/details/112258382