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Python 全系列/第一阶段:AI驱动的Python编程/函数和内存分析 38176楼

pygametimerandom
_display = pygame.display
COLOR_BLACK = pygame.Color()
COLOR_RED = pygame.Color()
version = MainGame():
    window = SCREEN_HEIGHT = SCREEN_WIDTH = TANK_P1 = EnemyTank_list = []
    EnemTank_count = Bullet_list = []
    Enemy_bullet_list = []
    ():
        ():
        _display.init()
        MainGame.window = _display.set_mode([MainGame.SCREEN_WIDTHMainGame.SCREEN_HEIGHT])
        MainGame.TANK_P1 = Tank()
        .creatEnemyTank()
        _display.set_caption(+version)
        :
            MainGame.window.fill(COLOR_BLACK)
            .getEvent()
            MainGame.window.blit(.getTextSurface(%(MainGame.EnemyTank_list))())
            MainGame.TANK_P1.displayTank()
            .blitEnemyTank()
            MainGame.TANK_P1 MainGame.TANK_P1.stop:
                MainGame.TANK_P1.move()
            .blitBullet()
            .blitEnemyBullet()
            time.sleep()
            _display.update()
    ():

        top = speed = random.randint()
        i (MainGame.EnemTank_count):
            left = random.randint()
            eTank = EnemyTank(left*topspeed)
            MainGame.EnemyTank_list.append(eTank)
    ():
        eTank MainGame.EnemyTank_list:
            eTank.displayTank()
            eTank.randMove()
            eBullet = eTank.shot()
            MainGame.Enemy_bullet_list.append(eBullet)
    ():
        bullet MainGame.Bullet_list:
            bullet.live:
                bullet.displayBullet()
                bullet.bulletMove()
            :
                MainGame.Bullet_list.remove(bullet)
    ():
        eBullet MainGame.Enemy_bullet_list:
            eBullet.live:
                eBullet.displayBullet()
                eBullet.bulletMove()
            :
                MainGame.Bullet_list.remove(eBullet)

    ():
        eventList = pygame.event.get()
        event eventList:
            event.type == pygame.QUIT:
                .endGame()
            event.type == pygame.KEYDOWN:
                event.key == pygame.K_LEFT:
                    ()
                    MainGame.TANK_P1.direction = MainGame.TANK_P1.stop = event.key == pygame.K_RIGHT:
                    ()
                    MainGame.TANK_P1.direction = MainGame.TANK_P1.stop = event.key == pygame.K_UP:
                    ()
                    MainGame.TANK_P1.direction = MainGame.TANK_P1.stop = event.key == pygame.K_DOWN:
                    ()
                    MainGame.TANK_P1.direction = MainGame.TANK_P1.stop = event.key == pygame.K_SPACE:
                    ()
                    (MainGame.Bullet_list) < :
                        m = Bullet(MainGame.TANK_P1)
                        MainGame.Bullet_list.append(m)
                    :
                        ()
                    (%(MainGame.Bullet_list))
            event.type == pygame.KEYUP:
                event.key == pygame.K_LEFT event.key == pygame.K_RIGHT event.key == pygame.K_UP event.key == pygame.K_DOWN:
                    MainGame.TANK_P1.stop = (text):
        pygame.font.init()
        font = pygame.font.SysFont()
        textSurface = font.render(textCOLOR_RED)
        textSurface
    ():
        ()
        ()
Tank():
    (lefttop):
        .images = {
            :pygame.image.load():pygame.image.load():pygame.image.load():pygame.image.load()
        }
        .direction = .image = .images[.direction]
        .rect = .image.get_rect()
        .rect.left = left
        .rect.top = top
        .speed = .stop = ():
        .direction == :
            .rect.left > :
                .rect.left -= .speed
        .direction == :
            .rect.left + .rect.height < MainGame.SCREEN_WIDTH:
                .rect.left += .speed
        .direction == :
            .rect.top > :
                .rect.top -= .speed
        .direction == :
            .rect.top + .rect.height < MainGame.SCREEN_HEIGHT:
                .rect.top += .speed
    ():
        Bullet()
    ():
        .image = .images[.direction]
        MainGame.window.blit(.image.rect)
MyTank(Tank):
    ():
        EnemyTank(Tank):
    (lefttopspeed):
        .images = {
            : pygame.image.load(): pygame.image.load(): pygame.image.load(): pygame.image.load()
        }
        .direction = .randDirection()
        .image = .images[.direction]
        .rect = .image.get_rect()
        .rect.left = left
        .rect.top = top
        .speed = speed
        .stop = .step = ():
        num = random.randint()
        num == :
            num == :
            num == :
            num == :
            ():
        .step <= :
            .direction = .randDirection()
            .step = :
            .move()
            .step -= Bullet():
    (tank):
        .image = pygame.image.load()
        .direction = tank.direction
        .rect = .image.get_rect()
        .direction == :
            .rect.left = tank.rect.left + tank.rect.width/- .rect.width/.rect.top = tank.rect.top - .rect.height
        .direction == :
            .rect.left = tank.rect.left + tank.rect.width / - .rect.width / .rect.top = tank.rect.top + tank.rect.height
        .direction == :
            .rect.left = tank.rect.left - .rect.width / - .rect.width / .rect.top = tank.rect.top + tank.rect.width / - .rect.width / .direction == :
            .rect.left = tank.rect.left + tank.rect.width
            .rect.top = tank.rect.top + tank.rect.width / - .rect.width / .speed = .live = ():
        .direction == :
            .rect.top > :
                .rect.top -= .speed
            :
                .live = .direction == :
            .rect.top < MainGame.SCREEN_HEIGHT - .rect.height:
                .rect.top += .speed
            :
                .live = .direction == :
            .rect.left > :
                .rect.left -= .speed
            :
                .live = .direction == :
            .rect.left < MainGame.SCREEN_WIDTH - .rect.width:
                .rect.left += .speed
            :
                .live = ():
        MainGame.window.blit(.image.rect)
Explode():
    ():
        ():
        Wall():
    ():
        ():
        Music():
    ():
        ():
        MainGame().startGame()

检查了好几次,每次到了8分38秒此时效果时候就弹出下面的提示,该怎么处理呢?

image.png

Python 全系列/第二阶段:Python 深入与提高/游戏开发-坦克大战 38177楼

在本视频中发送Get请求带参数的案例中,如果请求的地址是https协议则会报错(如果是http协议就没错),错误信息如下图(注:HTTPClient版本为4.3.5  JDK1.8)  通过网络上也找了一些解决办法,但是试了下没啥用(附带几个链接:https://blog.csdn.net/xuzhuang2008/article/details/43306111   )


代码截图:

图片.png

错误信息:

Exception in thread "main" javax.net.ssl.SSLKeyException: RSA premaster secret error
    at sun.security.ssl.RSAClientKeyExchange.<init>(Unknown Source)
    at sun.security.ssl.ClientHandshaker.serverHelloDone(Unknown Source)
    at sun.security.ssl.ClientHandshaker.processMessage(Unknown Source)
    at sun.security.ssl.Handshaker.processLoop(Unknown Source)
    at sun.security.ssl.Handshaker.process_record(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.performInitialHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at org.apache.http.conn.ssl.SSLConnectionSocketFactory.createLayeredSocket(SSLConnectionSocketFactory.java:275)
    at org.apache.http.conn.ssl.SSLConnectionSocketFactory.connectSocket(SSLConnectionSocketFactory.java:254)
    at org.apache.http.impl.conn.HttpClientConnectionOperator.connect(HttpClientConnectionOperator.java:123)
    at org.apache.http.impl.conn.PoolingHttpClientConnectionManager.connect(PoolingHttpClientConnectionManager.java:318)
    at org.apache.http.impl.execchain.MainClientExec.establishRoute(MainClientExec.java:363)
    at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:219)
    at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:195)
    at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:86)
    at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:108)
    at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:184)
    at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:82)
    at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:106)
    at com.bjsxt.test.HttpClientTest.doGetParam(HttpClientTest.java:60)
    at com.bjsxt.test.HttpClientTest.main(HttpClientTest.java:18)
Caused by: java.security.NoSuchAlgorithmException: SunTls12RsaPremasterSecret KeyGenerator not available
    at javax.crypto.KeyGenerator.<init>(KeyGenerator.java:169)
    at javax.crypto.KeyGenerator.getInstance(KeyGenerator.java:223)
    at sun.security.ssl.JsseJce.getKeyGenerator(Unknown Source)
    ... 23 more


JAVA 全系列/(旧的隐藏)第七阶段:JAVA 高级技术/HttpClient 38180楼

——————————————————————————————

老师请问一下,我的代码,没进行线程同步,却怎么也试不出品牌与商品错乱的情况?试了好几次了


UC截图20190308152553.png

package com.jingdong.www;

//商品类
public class Goods {
	//品牌
	private String brand;  //通过赋值,实现多种商品简单点
	private String commodity;
	public String getBrand() {
		return brand;
	}
	public void setBrand(String brand) {
		this.brand = brand;
	}
	public String getCommodity() {
		return commodity;
	}
	public void setCommodity(String commodity) {
		this.commodity = commodity;
	}
	public Goods(String brand, String commodity) {
		super();
		this.brand = brand;
		this.commodity = commodity;
	}
	public Goods() {
		super();
	}
	
	
	
}
package com.jingdong.www;


//生产者类  线程才能同时嘛
public class Producer implements Runnable{
	Goods producer;

	public Producer(Goods producer) {
		super();
		this.producer = producer;
	}

	@Override
	public void run() {
		// TODO 自动生成的方法存根
		for(int i=1;i<=10;i++) {  //生产10次
			if(i%2==0) {//双数生产娃哈哈
				try {
					Thread.sleep(300);
				} catch (InterruptedException e) {
					// TODO 自动生成的 catch 块
					e.printStackTrace();
				}
				producer.setBrand("娃哈哈");
				producer.setCommodity("矿泉水");
			}else {//如果是单数生产旺仔小馒头
				try {
					Thread.sleep(300);
				} catch (InterruptedException e) {
					// TODO 自动生成的 catch 块
					e.printStackTrace();
				}
				producer.setBrand("旺仔");
				producer.setCommodity("小馒头");
			}
			//生产什么打印什么
			System.out.println("生产了     "+producer.getBrand()+""+producer.getCommodity());
		}
		
	}
	
	

}
package com.jingdong.www;

//顾客类
public class Customer implements Runnable{
	//商品实例
	private Goods customer;

	public Customer(Goods customer) {
		super();
		this.customer = customer;
	}

	@Override
	public void run() {
		// TODO 自动生成的方法存根
		for(int i=1;i<=10;i++) {
			try {
				Thread.sleep(300);
			} catch (InterruptedException e) {
				// TODO 自动生成的 catch 块
				e.printStackTrace();
			}
			System.out.println("消费者     "+customer.getBrand()+customer.getCommodity());
		}
	}
	
	
}
package com.jingdong.www;

public class Test {
	public static void main(String[] args) {
		Goods goods=new Goods();
		new Thread(new Producer(goods)).start();
		new Thread(new Customer(goods)).start();
	}
}	


JAVA 全系列/第二阶段:JAVA 基础深化和提高/多线程技术(旧) 38186楼

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