java获取系统时间到毫秒_java获取当前时间精确到毫秒

[java:long now = System.currentTimeMillis()javascript:var now = new Date().getTime();objective-c:long now = [[NSDate date] timeIntervalSince1970];]

new SimpleDateFormat("yyyyMMddHHmmssSSS") .format(new Date() );

方法2：

Calendar Cld = Calendar.getInstance();

int YY = Cld.get(Calendar.YEAR) ;

int MM = Cld.get(Calendar.MONTH)+1;

int DD = Cld.get(Calendar.DATE);

int HH = Cld.get(Calendar.HOUR_OF_DAY);

int mm = Cld.get(Calendar.MINUTE);

int SS = Cld.get(Calendar.SECOND);

int MI = Cld.get(Calendar.MILLISECOND);[#include #include #include void sysLocalTime(){ time_t timesec; struct tm *p; time(&timesec); p = localtime(&timesec);

String curTime = YY + MM + DD + HH + mm + SS + MI;

Calendar cal = Calendar.getInstance();

java.util.Date date = cal.getTime();

SimpleDateFormat sdFormat = new SimpleDateFormat("yyyyMMddhhmmssSSS");

String myTime = sdFormat.format(currentTime);[1 second = 1000 millisecond = 1000,000 microsecond = 1000,000,000 nanosecond php的毫秒是没有默认函数的，但提供了一个microtime()函数，该函数返回包含两个元