What we understand is that if a single schema is instantiated, it will only be instantiated once. To implement a single schema, we simply use a variable to identify whether the class is instantiated. If it is not instantiated, then we can instantiate it once. Otherwise, we will directly return the instantiated object.
被父亲抛弃的殷丽英与母亲过着艰辛的日子，母亲生下的弟弟也在饥寒交迫中夭折，母亲哭瞎了双眼，这些惨剧让幼年的丽英深深埋下了仇恨的种子，从此开始计划复仇，她刻苦学习，拼命打工，并选择了编剧专业作为大学主修专业，她深知一毕业，她的复仇计划便会开始实行。
Ctrl + J: Repeat the previous command
Disadvantages: The efficiency is a bit low, and the synchronization lock must be judged every time the instance is called.
现在汉国可以说是完全得罪了齐国，正是我们拉拢他们的好机会，若是能让齐国成为我们西楚国的盟友，对我们只要好处没有坏处。
Dr Eric Cole, a cyber security expert, told Futuristic Technology magazine: "The first and most important point is to realize that this is a real threat and may happen." Cole added that for laymen, the best defense is to know where your information is stored electronically and to back up any important information locally. Even if cloud storage is often touted as a more secure network service, it will not be immune to targeted attacks that destroy supporting infrastructure or maintain the power grid of the framework.
该剧改编自网漫，讲述变身成人类的猫咪和它的主人之间的半真实半虚伪的同居生活爱情故事。故事开始于“在我身边守护着我、一心一意只看着我的猫咪，某一天突然变成了人类男人”这一设定。
下人来报：卿子冠军宋义前来吊祭。
本作为日本电视台放送的TV特别篇，单集112分钟。《钱形警部真红的搜查文件》于2月19日起在WOWOW开始放送的《钱形警部漆黑的犯罪文件》。
孙掌柜不敢起身，用膝盖跪行，往书房门口退去。
很好，床底下还算干净，并没有几寸厚的灰尘，看得出是常扫的，只略有点淡淡的霉味，是头上的床散发出来的。
Baidu Internet Disk Link, a Machine Brushing Tool:
你等等……庞夫人看着盆里各色的贝壳，抬手叫住了翘儿，一路小跑颠儿过去，看着满满一盆笑道，这么多啊？远处还有呢，装不下了。
Analysis shows that after the above payload is sent, when the ret instruction is about to be executed, the situation in the stack is shown in the figure:?
As a child, I have been living in a rural compound. There was a Peng family in the courtyard who gave birth to three children. At that time, I started to charge for vaccination. In order to save money, Peng Jia saved many vaccines.
布鲁斯·威利斯宣布主演犯罪惊悚片《失忆十分钟》。主角由于一宗意外失控的抢劫案而丧失了部分记忆而，为了回忆起自己到底遭受了什么以及幕后真凶，他不得不寻找有关线索来将遗失在犯罪现场的记忆片段慢慢拼凑起来。
又对埋伏在旁边的林中军汉们喝道：不是让你们盯着湖里吗，怎么就没发现有人从湖里冒出来？一个军汉颤抖道：大人，小人一直盯着湖里。
八前后，当他成为亚洲天王Star，她又出现了。他还爱着她，可又十分生气，不
李寿根和殷志源的冰岛旅行将于20日首播。9月3日上午tvN综艺节目《新西游记外传-去冰岛的三餐》方面通过油管直播传达了首播消息。李寿根说:"接到了正式播出时间，将于每星期五晚上10点40分《三时三餐山村篇》结束后播出。" 摄影机只有一个，播出时间只有5分钟。殷志源说："只会播一会儿，动一下就演完了，预想是240集左右。剧透一下的话，从韩国到中转地大概要播40集。"此前李寿根和殷志源在《新西游记6》中获得了冰岛旅行券，两人于本月1日出国，将于4日回国。
