tmp_=`mailq | grep -E "root" | awk '{print $1}'` for i in $tmp_;do postsuper -d $i;done postqueue -p or mailq 功能相同: postqueue: warning: Mail system is down -- accessing queue directly 没有开启postfix 功能
队列是一种特殊的线性表,它只允许在表的前端(front)进行删除操作,只允许在表的后端(rear)进行插入操作. 1.队列的顺序存储结构及实现 public class SequenceQueue<T> { private int DEFAULT_SIZE = 10; //保存数组的长度. private int capacity; //定义一个数组用于保存顺序队列的元素 private Object[] elementData; //保存顺序队列中元素的当前个数 private int fr
转载请注明出处:http://blog.csdn.net/u012860063 Max Sum of Max-K-sub-sequence Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 5791 Accepted Submission(s): 2083 Problem Description Given a circle seq