微信小程序----获取今天（昨天，明天）

获取当前时间点

onLoad: function(){var that = this;that.getNowTime()
}getNowTime: function() {var now = new Date();var year = now.getFullYear();var month = now.getMonth() + 1;var day = now.getDate();if(month < 10) {month = '0' + month;};if(day < 10) {day = '0' + day;};//  如果需要时分秒，就放开var h = now.getHours();var m = now.getMinutes();var s = now.getSeconds();var formatDate = year + '-' + month + '-' + day + ' ' + h + ':' + m + ':' + s;console.log('当前时间',formatDate)return formatDate;
},

获取昨天、今天、明天：today 是需要计算的某一天的日期例如“2018-12-12”，传 null 默认今天，addDayCount 是要推算的天数， -1是前一天，0是今天，1是后一天。

onLoad: function(options) {var that = this;//获取明天that.getDateStr(null,1)
},getDateStr: function(today, addDayCount) {
var date;
if(today) {date = new Date(today);
}else{date = new Date();
}
date.setDate(date.getDate() + addDayCount);//获取AddDayCount天后的日期 var y = date.getFullYear();var m = date.getMonth() + 1;//获取当前月份的日期 var d = date.getDate();if(m < 10){m = '0' + m;};if(d < 10) {d = '0' + d;};console.log( y + "-" + m + "-" + d)return y + "-" + m + "-" + d;
},

参考链接：https://blog.csdn.net/yangdl6/article/details/104632544/