调用
setTimeRange (2);
function setTimeRange (v) {
var fmt = ‘YYYY-MM-DD HH:mm‘;
var now = new Date();
var end = new Date();
if(v == 0){
} else if(v == 1){
} else if(v == 2){
//昨日
now.setDate(now.getDate() - 1);
end.setDate(end.getDate() - 1);
} else if(v == 3){
//本周
var nowDayOfWeek = now.getDay() ; //今天本周的第几天
if(nowDayOfWeek == 0) {
nowDayOfWeek = 6;//周日
} else {
nowDayOfWeek = nowDayOfWeek - 1;
}
now.setDate(now.getDate() - nowDayOfWeek);
end.setDate(now.getDate() + 6);
} else if(v == 4){
//上周
var nowDayOfWeek = now.getDay() ; //今天本周的第几天
if(nowDayOfWeek == 0) {
nowDayOfWeek = 6;//周日
} else {
nowDayOfWeek = nowDayOfWeek - 1;
}
now.setDate(now.getDate() - nowDayOfWeek - 7);
end.setDate(now.getDate() + 6);
} else if(v == 5){
//本月
now.setDate(1);
var nextMonth = end.getMonth() + 1;
var nextMonthFirstDay=new Date(end.getFullYear(), nextMonth,1);
var oneDay= 1000 * 60 * 60 * 24;
end = new Date(nextMonthFirstDay-oneDay);
} else if(v == 6){
//上月
var nextMonth = now.getMonth() - 1;
now.setMonth(nextMonth);
now.setDate(1);
nextMonth = nextMonth + 1;
var nextMonthFirstDay= new Date(end.getFullYear(),nextMonth, 1);
var oneDay= 1000 * 60 * 60 * 24;
end = new Date(nextMonthFirstDay-oneDay);
}
now.setHours(0);
now.setMinutes(0);
now.setSeconds(0);
end.setHours(23);
end.setMinutes(59);
end.setSeconds(59);
//我们在这里 输出一下
console.log(now + ‘:‘ + end);
}
JS时间 获取 当天,昨日,本周,上周,本月,上月
原文地址：http://www.cnblogs.com/eason-d/p/7495853.html