javascript实现动态定制定时器，具体代码如下：

function timeout (){

if(typeof timeout._instance === 'object'){

return timeout._instance;

}

function move(time, fn, config) {

function loop() {

fn(config);

time.id = setTimeout(function () {

if (time.num < time.count) {

loop();

time.num++;

} else if (time.num == time.count) {

clearTimeout(self.id);

time.id = null;

time.num = 0;

}

}, time.delay);

}

loop();

}

function stop(time) {

clearTimeout(time.id);

time.id = null;

time.num = 0;

}

timeout._instance = {

on:move,

off:stop

};

return timeout._instance;

};

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