// 将时分秒转为时间戳
function time_to_sec(time) {
	if (time !== null) {
		var s = '';
		var hour = time.split(':')[0];
		var min = time.split(':')[1];
		var sec = time.split(':')[2];
		s = Number(hour * 3600) + Number(min * 60) + Number(sec);
		return s;
	}
}

// 日期转为时间戳 - IOS兼容性
var time = '2021-05-20 00:00:00';
var repTime = aa.replace(/-/g, '/'); // 用正则转换分割线兼容ios
console.log("返回时间：" + repTime);
var timeTamp = Date.parse(repTime);
console.log("返回时间戳：" + timeTamp)