别揉了宝贝～都出水了

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.托尼得势后他的性格开始变得疑神疑鬼，对周围的人甚至至亲的家人、好兄弟都充满怀疑。疑心使他逐渐走上了不归路！Today, distributed attacks are really feasible because criminals have thousands of hosts for him to carry out denial of service (DoS) attacks. Since these large numbers of hosts can continuously increase or decrease and can change their IP addresses and their connections, it is still a challenge to prevent such attacks.For example, the Korean drama "Mist", which recently caught fire, is vividly unfolded in the story of heroine Gao Huilan. In order to obtain news, she is diabolical, selfish and does everything she can, but at the same time, she is extremely rational and uncompromising for her news ideal.《末代皇孙》，国产电视剧，主要描写一名满族旗人，在清朝灭亡、民国建立的纷乱大时代中挣扎求生存的传奇故事。林依（程媛媛 饰）和男友孙伟（安琥 饰）正在如火如荼地发展着地下恋情，而此时，警察却突然来到林依的家中告诉他孙伟已经死亡多时；辰（洪辰 饰）所住的对楼每晚都出现同一频率的灯火，而与她夜夜灯火对谈的男生却仿佛和另一个女生有着不能言说的秘密；刘一豪（周柏豪 饰）时常看见对楼女子惨叫求救，然而当他通知警察进行解救时，却惊人地发现房内空无一人……这一切背后都藏着怎样的秘密？遭遇离奇经历的他们，甚至还面临死亡的威胁，为此他们不惜一切代价揭开真相。类似的遭遇让小费和小欧坐上同一辆车，他们由此踏上惊险的旅程，期间则得知瓜星人追逐波波星人的原因……