时间：2021-08-10 09:25:26 | 栏目：jquery | 点击：次
实现的主要功能如下：
1.点击按钮的时候，可以进行倒计时，倒计时自定义。
2.当接收短信失败后，倒计时停止，可点击重新发送短信。
3.点击的元素支持一般标签和input标签。
html代码：
<input type="button" class="sameBtn btnCur" value="发送验证码"/> <div class="sameBtn btnCur2">发送验证码</div>
css代码：
body{padding:100px;text-align: center;}
.sameBtn{display: inline-block;font-size:12px;cursor:pointer;width:76px;height:25px;line-height: 25px;text-align: center;border:0;background: #3186df;color:#fff;}
.sameBtn.current{background: #b1b1b1;}
js代码：
//短信倒计时功能
/**使用方式如下：
* $(".btnCur").CountDownF({
* time:120,
* resetWords:'重新发送', //文字定义
* cnSeconds:'s',//倒计时中显示中文的秒，还是s
* clickClass:'current', //点击后添加的class类
* countState:true,
* callback:function(){
* setTimeout(function(){
* //当发送失败后，可以立即清除倒计时与其状态
* $(".btnCur").CountDownF('clearState');
* },3000);
* }
* });
*
* */
;(function($,window,document,undefined){
var pluginName = 'CountDownF',
defaluts = {
time:120,
resetWords:'重新发送', //文字定义
cnSeconds:'s',//倒计时中显示中文的秒，还是s
clickClass:'current', //点击后添加的class类
countState:true //是否可以倒计时，true可以倒计时，false不能进行倒计时
}
function Count(element,options){
this.element = element;
this.$element = $(this.element);
this.state = true;
this.settings = $.extend({},defaluts,options);
this.number = this.settings.time;
this.init();
}
Count.prototype = {
init:function(){
var self = this;
self.$element.on('click',function(){
if(self.state && self.settings.countState){
self.state = false;
if(self.settings.countState){
self._count();
}
if(self.settings.callback){
self.settings.callback();
}
}
});
},
//倒计时函数
_count:function(){
var self = this;
if(self.number == 0){
self._clearInit();
}else{
if(self.number < 10){
//如果当前元素是input，使用val赋值
this.$element.attr('type') ? this.$element.val('0' + self.number + self.settings.cnSeconds) : this.$element.html('0' + self.number + self.settings.cnSeconds);
}else{
this.$element.attr('type') ? this.$element.val(self.number + self.settings.cnSeconds) : this.$element.html(self.number + self.settings.cnSeconds);
}
self.number--;
this.$element.addClass(self.settings.clickClass);
self.clearCount = setTimeout(function(){
self._count();
},1000);
}
},
//修改是否可发送短信验证码倒计时状态
change:function(state){
var self = this;
self.settings.countState = state;
},
//置为初始状态
_clearInit:function(){
var self = this;
self.$element.removeClass(self.settings.clickClass);
self.$element.attr('type') ? self.$element.val(self.settings.resetWords) : self.$element.html(self.settings.resetWords);
clearTimeout(self.clearCount);
self.number = self.settings.time;
self.state = true;
},
//清除倒计时进行状态
clearState:function(){
var self = this;
self._clearInit();
}
};
$.fn.CountDownF = function(options){
var args = arguments;
if(options === undefined || typeof options ==='object' ){
return this.each(function(){
if(!$.data(this,'plugin' + pluginName)){
$.data(this,'plugin' + pluginName,new Count(this,options));
}
});
}
else if(typeof options === 'string' && options !== 'init'){
var returns;
this.each(function(){
var data = $.data(this,'plugin' + pluginName);
if(data instanceof Count && typeof data[options] === 'function'){
returns = data[options].apply(data,Array.prototype.slice.call(args,1));
}
if(options === 'destory'){
$.data(this, 'plugin' + pluginName, null);
}
});
return returns !== undefined ? returns : this;
}
else{
$.error('Method' + options + 'does not exist on jQuery.CountDownF');
}
}
})(jQuery,window,document);
调用方式：
$(function(){
$(".btnCur").CountDownF({
time:120,
countState:true,
callback:function(){
setTimeout(function(){
$(".btnCur").CountDownF('clearState');
},3000);
}
});
$(".btnCur2").CountDownF({
time:50,
countState:true,
cnSeconds:'秒',
callback:function(){
setTimeout(function(){
$(".btnCur2").CountDownF('clearState');
},5000);
}
});
})