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/**
* javaʱ¼ä¼ÆËã(intºÍlongҪעÒ⣬һ¶¨ÒªÑ¡Ôñlong)
* @author ´ÞÎÀ±ø
*
*/
public class TimeTester {
/**
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* @param days
* @return
*/
public static long getBeginSpan(long now,int days){
long beginspan = now-60*60*24*days*1000;
return beginspan;
}
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* @param days
* @return
*/
public static long getBeginSpan2(long now,int days){
long lessThisLong = 60*60*24*days*1000l;
long beginspan = now-lessThis;
return beginspan;
}
/**
* ¼ÆË㼸ÌìÇ°µÄºÁÃëÊý
* @param days
* @return
*/
public static long getBeginSpan3(long now,int days){
int lessThisInt = 60*60*24*days*1000;
System.out.println("lessThis:"+lessThis);
long beginspan = now-lessThis;
return beginspan;
}
public static void main(String[] args) {
long now = System.currentTimeMillis();
System.out.println("now:"+now);
System.out.println("be
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