js--------js获取当前时间，返回日期yyyy-MM-dd

//获取当前时间 yyyy-MM-dd
function getNowFormatDate() {
    var date = new Date();
    var seperator1 = "-";
    var seperator2 = ":";
    var month = date.getMonth() + 1;
    var strDate = date.getDate();
    if (month >= 1 && month <= 9) {
        month = "0" + month;
    }
    if (strDate >= 0 && strDate <= 9) {
        strDate = "0" + strDate;
    }
    var currentdate = date.getFullYear() + seperator1 + month + seperator1 + strDate;
    return currentdate;
}

//获取当前日期，个位数用0占位
function getNowWithLine() {
    var date = new Date();
    var seperator1 = "/";
    var seperator2 = ":";
    var month = date.getMonth() + 1;
    var strDate = date.getDate();
    if (month >= 1 && month <= 9) {
        month = "0" + month;
    }
    if (strDate >= 0 && strDate <= 9) {
        strDate = "0" + strDate;
    }
    var currentdate = date.getFullYear() + seperator1 + month + seperator1 + strDate;
    return currentdate;
}

//获取指定日期的前几天日期或后几天日期
function getDateFromCurrentDate(fromDate, dayInterval) {

    var curDate = new Date(Date.parse(fromDate.replace(/-/g, "/")));
    curDate.setDate(curDate.getDate() + dayInterval);
    var year = curDate.getFullYear();
    var month = (curDate.getMonth() + 1) < 10 ? "0" + (curDate.getMonth() + 1) : (curDate.getMonth() + 1);
    var day = curDate.getDate() < 10 ? "0" + curDate.getDate() : curDate.getDate();
    return year + "-" + month + "-" + day;
};

//当前日期加n天 返回日期 yyyy-MM-dd
function getFormatDate(addDay) {
    var date = new Date();
    date.setDate(date.getDate() + addDay);
    var seperator1 = "-";
    var month = date.getMonth() + 1;
    var strDate = date.getDate();
    if (month >= 1 && month <= 9) {
        month = "0" + month;
    }
    if (strDate >= 0 && strDate <= 9) {
        strDate = "0" + strDate;
    }
    var currentdate = date.getFullYear() + seperator1 + month + seperator1 + strDate;
    return currentdate;
}