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我国10日凌晨用长征七号运载火箭成功将天舟四号货运飞船送入太空,中国空间站建造阶段大幕开启。

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5月10日凌晨1时56分,长征七号运载火箭托举着天舟四号货运飞船腾空而起,约10分钟后,飞船与火箭成功分离,进入预定轨道,2时23分,飞船太阳能帆板顺利展开工作,发射取得圆满成功。这是我国空间站建造阶段的首次发射,也是空间站货物运输系统的第4次远征。新华社记者 郭程 摄

这是我国空间站建造阶段的首次发射,也是空间站货物运输系统的第4次远征。

夏夜已深,椰风阵阵。文昌航天发射场内,天舟四号货运飞船和长征七号运载火箭整装待发。

“天舟四号是我国进入空间站建造阶段的首发航天器,装载了共计200余件(套)货物,上行物资总重约6000公斤,承担着为神舟十四号航天员提供物资保障、空间站在轨运营支持和空间科学实验等任务。”航天科技集团五院货运飞船系统副总设计师党蓉说。

“各号注意,30分钟准备!”1时26分,发射任务01指挥员王宇亮的口令响彻发射场。

文昌航天发射场是我国唯一的濒海发射场,隶属西昌卫星发射中心。2017年以来,天舟系列货运飞船相继从这里飞赴太空。

5月10日凌晨1时56分,长征七号运载火箭托举着天舟四号货运飞船腾空而起,约10分钟后,飞船与火箭成功分离,进入预定轨道,2时23分,飞船太阳能帆板顺利展开工作,发射取得圆满成功。这是我国空间站建造阶段的首次发射,也是空间站货物运输系统的第4次远征。新华社记者 田定宇 摄

“5、4、3、2、1!点火!” 1时56分,伴着隆隆巨响,长征七号运载火箭托举着天舟四号货运飞船腾空而起,在夜空中划出一道绚丽的轨迹。

5月10日凌晨1时56分,长征七号运载火箭托举着天舟四号货运飞船腾空而起,约10分钟后,飞船与火箭成功分离,进入预定轨道,2时23分,飞船太阳能帆板顺利展开工作,发射取得圆满成功。这是我国空间站建造阶段的首次发射,也是空间站货物运输系统的第4次远征。新华社记者 杨冠宇 摄

长征七号是我国新一代中型运载火箭。这次是长征七号首次实现在一个月内完成测试和发射。

5月10日凌晨1时56分,长征七号运载火箭托举着天舟四号货运飞船腾空而起,约10分钟后,飞船与火箭成功分离,进入预定轨道,2时23分,飞船太阳能帆板顺利展开工作,发射取得圆满成功。这是我国空间站建造阶段的首次发射,也是空间站货物运输系统的第4次远征。

“这一次,火箭的测发周期较天舟三号任务时减少4天。”航天科技集团一院长征七号运载火箭型号办副主任设计师沈丹介绍。
约10分钟后,飞船与火箭成功分离,进入预定轨道。2时23分,飞船太阳能帆板顺利展开工作,发射取得圆满成功。

5月10日凌晨1时56分,长征七号运载火箭托举着天舟四号货运飞船腾空而起,约10分钟后,飞船与火箭成功分离,进入预定轨道,2时23分,飞船太阳能帆板顺利展开工作,发射取得圆满成功。这是我国空间站建造阶段的首次发射,也是空间站货物运输系统的第4次远征。新华社记者 杨冠宇 摄

至此,中国空间站建造阶段的大幕正式拉开,实现我国载人航天工程“三步走”战略目标的关键之战打响。

此刻,空间站天和核心舱与天舟三号组合体正飞行在400公里高的太空,等待着新成员的加入。

In the early morning of the 10th, China successfully launch the Tianzhou-4 cargo spacecraft into space with the Long March 7 carrier rocket, and the construction phase of the Chinese space station began.

Tianzhou-4 cargo spacecraft

At 1:56 a.m. on May 10, the Long March 7 carrier rocket lifted the Tianzhou-4 cargo spaceship into the air. About 10 minutes later, the spaceship and the rocket were successfully separated and entered the predetermined orbit. At 2:23, the spacecraft solar energy The windsurfing board started work smoothly and the launch was a complete success. This is the first launch in the construction phase of China's space station and the fourth expedition of the space station's cargo transportation system. Photo by Xinhua News Agency reporter Guo Cheng

This is the first launch in the construction phase of China's space station and the fourth expedition of the space station's cargo transportation system.

The summer night is deep, and the coconut wind is blowing. Inside the Wenchang Space Launch Site, the Tianzhou-4 cargo spacecraft and the Long March-7 carrier rocket are ready for launch.

"Tianzhou-4 is China's first spacecraft to enter the construction phase of the space station. It has loaded more than 200 pieces (sets) of cargo, with a total weight of about 6,000 kilograms. It is responsible for providing material support for the Shenzhou 14 astronauts and the space station. tasks such as orbital operation support and space science experiments," said Dang Rong, deputy chief designer of the cargo spacecraft system of the Fifth Academy of Aerospace Science and Technology Group.

"Attention everyone, prepare in 30 minutes!" At 1:26, the commander of Launch Mission 01, Wang Yuliang, resounded through the launch site.

Wenchang Space Launch Site is the only coastal launch site in China and is affiliated to the Xichang Satellite Launch Center. Since 2017, the Tianzhou series of cargo spaceships have successively flown from here to space.

At 1:56 a.m. on May 10, the Long March 7 carrier rocket lifted the Tianzhou-4 cargo spaceship into the air. About 10 minutes later, the spaceship and the rocket were successfully separated and entered the predetermined orbit. At 2:23, the spacecraft solar energy The windsurfing board started work smoothly and the launch was a complete success. This is the first launch in the construction phase of China's space station and the fourth expedition of the space station's cargo transportation system. Photo by Xinhua News Agency reporter Tian Dingyu

"5, 4, 3, 2, 1! Ignite!" At 1:56, accompanied by a loud rumbling, the Long March 7 carrier rocket lifted the Tianzhou 4 cargo spacecraft into the air, drawing a gorgeous line in the night sky traces of.

At 1:56 a.m. on May 10, the Long March 7 carrier rocket lifted the Tianzhou-4 cargo spaceship into the air. About 10 minutes later, the spaceship and the rocket were successfully separated and entered the predetermined orbit. At 2:23, the spacecraft solar energy The windsurfing board started work smoothly and the launch was a complete success. This is the first launch in the construction phase of China's space station and the fourth expedition of the space station's cargo transportation system. Photo by Xinhua News Agency reporter Yang Guanyu

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The Long March 7 is China's new generation of medium-size launch vehicles. This is the first time that the Long March 7 has completed the test and launch within one month.

At 1:56 a.m. on May 10, the Long March 7 carrier rocket lifted the Tianzhou-4 cargo spaceship into the air. About 10 minutes later, the spaceship and the rocket were successfully separated and entered the predetermined orbit. At 2:23, the spacecraft solar energy The windsurfing board started work smoothly and the launch was a complete success. This is the first launch in the construction phase of China's space station and the fourth expedition of the space station's cargo transportation system.

"This time, the test and launch cycle of the rocket is 4 days shorter than that of the Tianzhou-3 mission," said Shen Dan, deputy director of the Long March 7 Launch Vehicle Model Office of the Aerospace Science and Technology Group.
About 10 minutes later, the spacecraft and the rocket successfully separated and entered the predetermined orbit. At 2:23, the solar panels of the spacecraft started to work smoothly, and the launch was a complete success.

At 1:56 a.m. on May 10, the Long March 7 carrier rocket lifted the Tianzhou-4 cargo spaceship into the air. About 10 minutes later, the spaceship and the rocket were successfully separated and entered the predetermined orbit. At 2:23, the spacecraft solar energy The windsurfing board started work smoothly and the launch was a complete success. This is the first launch in the construction phase of China's space station and the fourth expedition of the space station's cargo transportation system. Photo by Xinhua News Agency reporter Yang Guanyu

So far, the curtain of the construction phase of China's space station has officially opened, and the key battle to achieve the "three-step" strategic goal of China's manned space project has begun.

At this moment, the combination of Tianhe core module and Tianzhou-3 of the space station is flying at a height of 400 kilometers in space, waiting for new members to join.

java设计模式

OPP七大原则:

◆开闭原则:对扩展开放,对修改关闭
◆里氏替换原则:继承必须确保超类所拥有的性质在子类中仍然成立
◆依赖倒置原则:要面向接口编程,不要面向实现编程。
◆单一职责原则:控制类的粒度大小、将对象解耦、提高其内聚性。
◆接口隔离原则:要为各个类建立它们需要的专用接口
◆迪米特法则:只与你的直接朋友交谈,不跟“陌生人”说话。
◆合成复用原则:尽量先使用组合或者聚合等关联关系来实现,其次才考虑使用继承关系来实现。

里氏替换原则:

里氏替换原则通俗来讲就是:子类可以扩展父类的功能,但不能改变父类原有的功能。也就是说:子类继承父类时,除添加新的方法完成新增功能外,尽量不要重写父类的方法。
按照里氏替换原则的要求,子类应该保留父类的功能,任何使用父类实例的地方都应该能用子类实例替换,以上的继承机制显然没有不满足该要求,所以从里氏替换原则的角度“正方形不是长方形”。

迪米特法则

又叫做最少知道原则,就是说一个对象应当对其它对象有尽可能少的了解,不要和陌生人说话。
强调只和朋友说话,不和陌生人说话。这里的朋友指的是:出现在成员变量,方法输入,输出参数中的类称为成员朋友类,而出现在方法体内部的类不属于朋友类。
迪米特法则初衷在于降低类之间的耦合。由于每个类尽量减少对其它类的依赖,因此。很容易使得系统的功能模块独立,相互之间不存在(或很少有)依赖关系。

java.sql.SQLException: Unknown error 145
    at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:965)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3973)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3909)
    at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2527)
    at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2680)
    at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2484)

CHECK TABLE tableName;
执行这个,如果表正常是下面的,如果不正常则会报表有错误,需要修复下
check table info

修复方式:

1.到数据目录下执行
myisamchk -r -c table_name.MYI

recovering (with keycache) MyISAM-table 'table_name.MYI'
Data records: 289
Data records: 288

2.Navicat 工具解决办法:
选中表->右键->Maintain->Repair Table->Quick,亲测有效。
解决问题。

1.狙击手

◎片  名 狙击手/最冷的枪
◎年  代 2022
◎产  地 中国大陆
◎类  别 剧情/历史/战争

狙击手种子下载

磁力链 狙击手.2022.HD.1080P.国语中英双字

2.长津湖之水门桥

◎译  名 The Battle At Lake Changjin II/Watergate Bridge
◎片  名 长津湖之水门桥/三炸水门桥/水门桥/长津湖(下)/长津湖2
◎年  代 2022
◎产  地 中国大陆,中国香港
◎类  别 剧情/历史/战争
29123-zo5nytncgkj.png

磁力链 长津湖之水门桥.2022.HD.1080P.国语中英双字

3.四海/年轻的故事

◎译  名 Only Fools Rush In
◎片  名 四海/年轻的故事
◎年  代 2022
◎产  地 中国大陆
◎类  别 喜剧/动作/爱情
◎语  言 普通话
◎字  幕 中英双字
四海
磁力链 四海.2022.HD.1080P.国语中英双字

4长津湖

83481-e9lnag2k81t.png

磁力链 长津湖.2021.BD.1080P.国语中字.mkv

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