微信小程序+WEB使用JS实现注册【60s】倒计时功能开发步骤:
1、效果图:
2、页面仅仅利用了JS的相关功能,包含:wxml、js、wxss
2.1wxml页面代码:
<text>绑定手机</text> <form bindsubmit="bindMobile"> <view> <text>手 机:</text> <input type="number" placeholder="请输入手机号" maxlength="11" value="" auto-focus="true" bindblur="blur_mobile" /> <button type="button" bindtap="clickVerify">获取验证码</button> <button type="button">重新发送{{last_time}}秒</button> </view> <input type="number" placeholder="请输入验证码" maxlength="6" value=""/> <button form-type="submit">确认绑定</button> </form>
2.2 js页面代码:
var countdown = 60; var settime = function (that) { if (countdown == 0) { that.setData({ is_show: true }) countdown = 60; return; } else { that.setData({ is_show:false, last_time:countdown }) countdown--; } setTimeout(function () { settime(that) } , 1000) } Page({ /** * 页面的初始数据 */ data: { last_time:'', is_show:true }, clickVerify:function(){ var that = this; // 将获取验证码按钮隐藏60s,60s后再次显示 that.setData({ is_show: (!that.data.is_show) //false }) settime(that); } })
2.3 wxss页面代码:
/* 发送验证码按钮隐藏,并展示倒数60s提示 */ .hide{ display: none; } .show{ display: block; }
3、上面讲的是微信小程序的,那么我们一般web端或者移动端的应该是什么样呢?
其实,方法都差不多,这里也贴出来仅供大家参考
<!-- 这段代码(html)是从脚本之家挪过来的,信誉度应该是很高的,大家可以放心使用 --> <script src="https://libs.baidu.com/jquery/1.10.2/jquery.min.js"></script> <script type="text/javascript"> var countdown=60; function settime(obj) { if (countdown == 0) { obj.removeAttribute("disabled"); obj.value="免费获取验证码"; countdown = 60; return; } else { obj.setAttribute("disabled", true); obj.value="重新发送(" + countdown + ")"; countdown--; } setTimeout(function() { settime(obj) } ,1000) } </script> <body> <input type="button" value="免费获取验证码" /> </body> </html>