方法一:
Date date=new Date();
String ss= ""+dategetTime();
Calendar c = CalendargetInstance();
long l = cgetTimeInMillis();
方法二:
Date dt= new Date();
Long time= dtgetTime();
Long time2=SystemcurrentTimeMillis();
这里提供了两种方式获取时间,但是如果想获取前一天的时间,用日历类实现即可。
@echo off
set "ScDir=c:\a"
set "DtDir=d:\b"
cd /d "%ScDir%"
call :Date2Day "%date%" 1 Day
for /f "delims=" %%a in ('dir /a-d /s /b std') do (
echo %%a|findstr "%Day%"&&robocopy /s "%ScDir%" "%DtDir%" "%%~nxa"
)
pause
exit
:Date2Day
setlocal
for /f "tokens=1-3 delims=/-:\, " %%a in ('echo/%~1') do (
set /a yy=%%a,mm=%%b,dd=%%c)
set /a z=14-mm,z/=12,y=yy+4800-z,m=mm+12z-3,j=153m+2
set /a j=j/5+dd+y365+y/4-y/100+y/400-2472633
set /a i=j-%~2,a=i+2472632,b=4a+3,b/=146097,c=-b146097,c/=4,c+=a
set /a d=4c+3,d/=1461,e=-1461d,e/=4,e+=c,m=5e+2,m/=153,dd=153m+2,dd/=5
set /a dd=-dd+e+1,mm=-m/10,mm=12,mm+=m+3,yy=b100+d-4800+m/10
(if %mm% LSS 10 set mm=0%mm%)&(if %dd% LSS 10 set dd=0%dd%)
endlocal&set %~3=%yy%%f%%mm%%f%%dd%&goto :EOF
JAVA
import javatextFormat;
import javatextSimpleDateFormat;
import javautilCalendar;
public class $ {
public static void main(String[] args) {
Format f = new SimpleDateFormat("yyyy-MM-dd");
Calendar c = CalendargetInstance();
Systemoutprintln("今天:" + fformat(cgetTime()));
cadd(CalendarDAY_OF_MONTH, -1);
Systemoutprintln("昨天:" + fformat(cgetTime()));
}
}
SQL(MySQL):
select date_sub(current_date(),interval 1 day)必须在TC20才可以使用
/加载头文件/
#include <stdioh>
#include <biosh>
#include <dosh>
#include <conioh>
/定义常量/
/左移键/
#define LEFT 0x4b00
/右移键/
#define RIGHT 0x4d00
/下移键/
#define DOWN 0x5000
/上移键/
#define UP 0x4800
/向上翻页移键/
#define PAGEUP 0x4900
/向下翻页移键/
#define PAGEDOWN 0x5100
/小写字母q/
#define QLOWER 0x1071
/大写字母Q/
#define QUPPER 0x1051
/空格键/
#define SPACE 0x3920
/Escape键/
#define ESC 0x011b
/定义全局变量/
struct date sysTime;
int currentYear;
int currentMonth;
int currentDay;
int n_currentMon;
int n_lastMon;
/-----------自定义函数-------------------------/
void checkDate();
int isLeapyear(int year);
int getWeek(int year,int month,int day);
void printSpace(int n);
void printSeparator();
void printUsage();
void printWeek();
void printWeek2(int week);
void showCalendar(int year,int month,int day);
void getKeyValue();
/--------------------------------------------/
/检查日期有效性函数/
void checkDate()
{
/如果给定的日期中年份部分为负数或者0/
if(currentYear<=0)
{
gotoxy(1,27);
printf("The year should be a positive number !\n");
gotoxy(1,28);
printf("Press any key to continue");
getchar();
getchar();
/以当前系统时间重新赋值/
currentYear=sysTimeda_year;
currentMonth=sysTimeda_mon;
currentDay=sysTimeda_day ;
}
/如果给定的日期中月份部分为负数,为0或者大于12/
if(currentMonth>12||currentMonth<1)
{
gotoxy(1,27);
printf("The month should be a number between 1 and 12 !\n");
gotoxy(1,28);
printf("Press any key to continue");
getchar();
getchar();
/以当前系统时间重新赋值/
currentYear=sysTimeda_year;
currentMonth=sysTimeda_mon;
currentDay=sysTimeda_day ;
}
/如果给定的日期中天数部分为负数,为0或者大于31/
if(currentDay>31||currentDay<1)
{
gotoxy(1,27);
printf("The day should be a number between 1 and 31 !\n");
gotoxy(1,28);
printf("Press any key to continue");
getchar();
getchar();
/以当前系统时间重新赋值/
currentYear=sysTimeda_year;
currentMonth=sysTimeda_mon;
currentDay=sysTimeda_day ;
}
}
/判断是否是闰年函数/
int isLeapyear(int year)
{
/闰年的判断:(1)year被4整除,并且year不被100整除
或(2)year被4整除,并且year被400整除/
if(year%4==0&&year%100||year%400==0)
return 1 ;
else
return 0 ;
}
/根据给定日期计算星期函数/
int getWeek(int year,int month,int day)
{
int leapFlag;
int week;
int i ;
/该数组用于保存每个月的天数/
int a[13]={0,31,28,31,30,31,30,31,31,30,31,30,31};
int count=0 ;
/判断给定年份是否是闰年/
leapFlag=isLeapyear(year);
/如果是闰年则2月份的日期应该29天/
if(leapFlag==1)
a[2]++;
/计算从给定年份的1月1日到给定月份的1号之间的天数/
for(i=1;i<month;i++)
{
count+=a[i];
}
/计算从给定年份的1月1日到给定日期之间的天数/
count+=day;
/计算星期/
week=(year+1+(year-1)/4+(year-1)/100+(year-1)/400+count)%7 ;
return week ;
}
/输出指定个数个空格函数/
void printSpace(int n)
{
int i ;
for(i=0;i<n;i++)
printf(" ");
}
/输出分隔线函数/
void printSeparator()
{
int i ;
for(i=0;i<38;i++)
{
printf("=");
}
printf("\n");
}
/输出使用方法函数/
void printUsage()
{
gotoxy(45,3);
/设定字体颜色/
textcolor(YELLOW);
/送格式化输出至屏幕/
cprintf("-----------Usage-----------");
gotoxy(45,5);
textcolor(YELLOW);
cprintf("YEAR");
gotoxy(50,5);
printf(" Up key( ) to increase;\n");
gotoxy(50,7);
printf(" Down key( ) to decrease\n");
gotoxy(45,9);
textcolor(YELLOW);
cprintf("MONTH:");
gotoxy(50,9);
printf(" Right key( ) to increase;\n");
gotoxy(50,11);
printf(" Left key( ) to decrease\n");
gotoxy(45,13);
textcolor(YELLOW);
cprintf("DAY");
gotoxy(50,13);
printf(" PageDown key to increase;\n");
gotoxy(50,15);
printf(" PageUp key to decrease\n" );
gotoxy(45,17);
textcolor(YELLOW);
cprintf("QUERY");
gotoxy(50,17);
printf(" Q/q key\n");
textcolor(YELLOW);
gotoxy(45,19);
cprintf("RESET");
gotoxy(50,19);
printf(" SPACE key\n");
gotoxy(45,21);
textcolor(YELLOW);
cprintf("EXIT");
gotoxy(50,21);
printf(" Esc key\n");
gotoxy(59,5);
/设置寄存器,表示在指定位置输出一次指定的字符/
_CX=01;
_AH=0xa;
/指定输出字符为向上的箭头/
_AL=24;
/产生一次中断,输出向上的箭头/
geninterrupt(0x10);
gotoxy(61,7);
_CX=01;
_AH=0xa;
/指定输出字符为向下的箭头/
_AL=25;
geninterrupt(0x10);
gotoxy(62,9);
_CX=01;
_AH=0xa;
_AL=26;
/指定输出字符为向右的箭头/
geninterrupt(0x10);
gotoxy(61,11);
_CX=01;
_AH=0xa;
/指定输出字符为向左的箭头/
_AL=27;
geninterrupt(0x10);
/还原字体颜色/
textcolor(7);
}
/根据系统日期输出星期函数/
void printWeek()
{
int day ;
/根据系统日期获得星期/
day=getWeek(currentYear,currentMonth,currentDay);
textcolor(11);
/输出星期,0表示星期天,1表示星期一6表示星期六/
if(day==0)
cprintf("%d-%d-%d,Sunday!",currentYear,currentMonth,currentDay);
if(day==1)
cprintf("%d-%d-%d,Monday!",currentYear,currentMonth,currentDay);
if(day==2)
cprintf("%d-%d-%d,Tuesday!",currentYear,currentMonth,currentDay);
if(day==3)
cprintf("%d-%d-%d,Wednesday!",currentYear,currentMonth,currentDay);
if(day==4)
cprintf("%d-%d-%d,Thursday!",currentYear,currentMonth,currentDay);
if(day==5)
cprintf("%d-%d-%d,Friday!",currentYear,currentMonth,currentDay);
if(day==6)
cprintf("%d-%d-%d,Saturday!",currentYear,currentMonth,currentDay);
textcolor(7);
}
/输出指定星期函数/
void printWeek2(int week)
{
if(week==0)
cprintf(",Sunday");
if(week==1)
cprintf(",Monday");
if(week==2)
cprintf(",Tuesday");
if(week==3)
cprintf(",Wendesday");
if(week==4)
cprintf(",Thursday");
if(week==5)
cprintf(",Friday");
if(week==6)
cprintf(",Staturday");
}
/显示日历函数/
void showCalendar(int year,int month,int day)
{
int i;
int j;
/输出的日期/
int outDay;
int leapFlag;
/本月第一个星期中,在上月的天数/
int dayLastMon;
int week;
/该数组用于保存每个月的天数/
int a[13]={0,31,28,31,30,31,30,31,31,30,31,30,31};
outDay=0;
dayLastMon=0;
week=0;
/判断给定年份是否是闰年/
leapFlag=isLeapyear(year);
/如果是闰年则2月应该是29天/
if(leapFlag==1)
{
a[2]++;
}
/如果给定的日期中,天数大于该月的最大天数/
if(day>a[month])
{
printf("The number of this month's day is %d at most !\n",a[month]);
printf("Press any key to continue\n");
getchar();
getchar();
/以当前系统时间重新赋值/
year=sysTimeda_year;
month=sysTimeda_mon;
day=sysTimeda_day ;
currentYear=sysTimeda_year;
currentMonth=sysTimeda_mon;
currentDay=sysTimeda_day ;
}
/当前月的天数/
n_currentMon=a[month];
/上一月的天数/
n_lastMon=a[month-1];
/根据给定日期,获取给定月份1号的星期/
week=dayLastMon=getWeek(year,month,1);
/清除文本模式窗口/
clrscr();
printf("\nThe calendar of %d",year);
textcolor(10);
/显示给定年份是否是闰年/
if(leapFlag==1)
cprintf(" [leap year]",year);
if(leapFlag==0)
cprintf(" [not leap year]",year);
printf("\n");
textcolor(7);
printSeparator();
textcolor(YELLOW);
/输出月份提示,1-12分别表示1月到12月/
switch(month)
{
case 1 :
cprintf(" January 1 ");
break ;
case 2 :
cprintf(" February 2 ");
break ;
case 3 :
cprintf(" March 3 ");
break ;
case 4 :
cprintf(" April 4 ");
break ;
case 5 :
cprintf(" May 5 ");
break ;
case 6 :
cprintf(" June 6 ");
break ;
case 7 :
cprintf(" July 7 ");
break ;
case 8 :
cprintf(" August 8 ");
break ;
case 9 :
cprintf(" September 9 ");
break ;
case 10 :
cprintf(" October 10 ");
break ;
case 11 :
cprintf(" Nevember 11 ");
break ;
case 12 :
cprintf(" December 12");
break ;
}
textcolor(7);
printf("\n\n");
textcolor(13);
cprintf(" Sun Mon Tue Wed Thu Fri Sat");
textcolor(7);
printf("\n\n");
/因为一个月中最多跨度6个星期,所以循环从0到5/
for(i=0;i<6;i++)
{
/如果是该月的第一个星期/
if(i==0)
{
/第一个星期中还要7-dayLastMon天本月,有dayLastMon天在上个月,
所以输出dayLastMon4个空格符,每个日期在日历中占用4个空格/
printSpace(dayLastMon4);
/剩余在本月的第一个星期中的天数为7-dayLastMon/
for(j=0;j<7-dayLastMon;j++)
{
/到达day的前一天时,输出++outDay/
if(outDay==day-1)
{
/用**字体突出显示/
textcolor(YELLOW);
cprintf(" [%d]",++outDay);
textcolor(7);
}
/到达day当天时,并且不是星期天/
else if(outDay==day && week!=0)
{
printf("%3d",++outDay);
}
/到达day当天时,并且是星期天/
else
{
printf("%4d",++outDay);
}
/计算当天的星期,如果前一天是星期六(6),则当天是星期天(0),
其他情况则直接星期加1/
week=(week<6)week+1:0;
}
printf("\n\n");
}
/如果不是该月的第一个星期/
else
{
/则输出该星期中的7天/
for(j=0;j<7;j++)
{
/输出的天数小于该月的最大天数/
if(outDay<a[month])
{
/到达day的前一天时,输出++outDay/
if(outDay==day-1)
{
/输出一位数字/
if(outDay<9)
{
textcolor(YELLOW);
cprintf(" [%d]",++outDay);
textcolor(7);
}
/输出两位数字/
else
{
textcolor(YELLOW);
cprintf(" [%2d]",++outDay);
textcolor(7);
}
}
/到达day当天时,并且不是星期天/
else if(outDay==day && week!=0)
{
printf("%3d",++outDay);
}
/到达day当天时,并且是星期天/
else
{
printf("%4d",++outDay);
}
}
/计算当天星期/
week=(week<6)week+1:0;
}
printf("\n\n");
if(outDay==a[month])break ;
}
}
/输出分隔线/
printSeparator();
/输出当前选择的日期和星期/
printf("The day you choose is:\n\n");
printWeek();
gotoxy(1,22);
textcolor(10);
cprintf("--------------------\n");
textcolor(7);
/输出系统日期和星期/
printf("\nToday is: %d-%d-%d",sysTimeda_year,sysTimeda_mon,sysTimeda_day);
printWeek2(getWeek(sysTimeda_year,sysTimeda_mon,sysTimeda_day));
printf("\n\n");
/显示按键 *** 作/
printUsage();
gotoxy(1,25);
}
/通过键盘调整日期函数/
void getKeyValue()
{
int key ;
char ch;
/默认显示当前系统日期和星期/
currentYear=sysTimeda_year;
currentMonth=sysTimeda_mon;
currentDay=sysTimeda_day ;
showCalendar(currentYear,currentMonth,currentDay);
while(1)
{
/获取键值,根据键值调整日历输出/
key=bioskey(0);
/右移键,增加月份/
if(key==RIGHT)
{
/月份值在1-12之间,则直接加1/
if(currentMonth<12 && currentMonth>=1)
{
currentMonth++;
}
/如果月份为12,则加1后进位,即年份加1,月份变为1/
else
{
currentYear++;
currentMonth=1 ;
}
}
/左移键,减少月份/
if(key==LEFT)
{
/月份值在1-12之间,则直接减1/
if(currentMonth<=12 && currentMonth>1)
{
currentMonth--;
}
/如果月份为1,则减1后,到上一年,月份变为12/
else
{
currentYear--;
currentMonth=12 ;
}
}
/上移键,增加年份/
if(key==UP)
{
currentYear++;
}
/下移键,减少年份/
if(key==DOWN)
{
currentYear--;
}
/上移键,减少天数/
if(key==PAGEUP)
{
/当前日不是该月的第一天,则天数直接减1/
if(currentDay!=1)
{
currentDay--;
}
/当前日是该月的第一天,并且是该年的第一个月(即1月1日),
则天数减1后,变为上一年的最后一个月的最后一天(即12月31日)/
else if(currentDay==1 && currentMonth==1)
{
currentYear--;
currentMonth=12 ;
currentDay=31 ;
}
/当前日是该年中某一个月的最后一天,则天数减1后,
变为上个月的最后一天/
else
{
currentMonth--;
currentDay=n_lastMon ;
}
}
/下移键,增加天数/
if(key==PAGEDOWN)
{
/当前日不是该月的最后一天,则天数直接加1/
if(n_currentMon!=currentDay)
{
currentDay++;
}
/当前日是该年的最后一天(即12月31日),则天数加1后,
变为下一年的第一个月的第一天(即1月1日)/
else if(n_currentMon==currentDay && currentMonth==12)
{
currentYear++;
currentMonth=1 ;
currentDay=1 ;
}
/当前日是该年中某一个月的最后一天,则天数加1后,
变为下个月的第一天/
else
{
currentMonth++;
currentDay=1 ;
}
}
/Q或者q键,表示查询指定日期的星期/
if(key==QLOWER||key==QUPPER)
{
{
printf("Input date(eg,%d-%d-%d):",sysTimeda_year,sysTimeda_mon,sysTimeda_day);
scanf("%d-%d-%d",¤tYear,¤tMonth,¤tDay);
checkDate();
}
}
/空格键,重置到系统日期/
if(key==SPACE)
{
currentYear=sysTimeda_year;
currentMonth=sysTimeda_mon;
currentDay=sysTimeda_day ;
}
/Escpe键退出系统/
if(key==ESC)
{
printf("Do you really want to quit(Y/N)");
ch=getchar();
if(ch=='y'||ch=='Y')
break ;
}
showCalendar(currentYear,currentMonth,currentDay);
}
}
/主函数/
void main()
{
/清除文本模式窗口/
clrscr();
/设置屏幕显示方式/
_AL=03;
_AH=0;
geninterrupt(0x10);
getdate(&sysTime);
getKeyValue();
}
@echo off
>tmpvbs echo wscriptecho dateadd("d",-1,date())
for /f "tokens=1-3 delims=-/ " %%a in ('cscript //nologo tmpvbs') do set/a y=%%a,m=100%%b,d=100%%c
del tmpvbs&echo,%y%-%m:~-2%-%d:~-2%
pause
var down=new Date();
'down是当前的日期,想得至昨天的,可以将日期减一就可以了!
用这句:
var down = new Date()-246060;
var dDate=downgetDate();
var dMonth=downgetMonth()+1;
var dYear=downgetYear();
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