60s倒计时（原生js版）

时间：2021-11-20 22:03:43
<!DOCTYPE html>
<html>
    <head>
        <meta charset="UTF-8">
        <title></title>
        <style>
            
            .chaxun-yanzhengma-btn{
                border-radius: 4px;
                background-color: #FF4179;
                border: 2px solid #c81352;
                
                color: #FFFFFF;
            }
            
        </style>
    </head>
    <body>
        <input class="chaxun-yanzhengma-btn" type="button" value="获取验证码" />
        <script>
            var btn = document.querySelector('.chaxun-yanzhengma-btn');
            var timer;
            
            btn.onclick=function(){
                clearInterval(timer);
                var tip = 6;
                btn.disabled = 'disabled';
                btn.value = tip + 's后重新发送';
                btn.style.background = '#eee';
                btn.style.color = '#666';
                btn.style.borderColor = '#aaa';
                
                timer = setInterval(function(){
                    tip--
                    if( tip == 0 ){
                        btn.disabled = false;
                        btn.value = '获取验证码';
                        btn.style.background = '#FF4179';
                        btn.style.color = '#fff';
                        btn.style.borderColor = '#c81352';
                        clearInterval(timer);
                        return false;
                    }
                    btn.value = tip + 's后重新发送'
                },1000);
            }
        </script>
    </body>
</html>

 



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