bat if "!line!"==""or"" (

根据你提供的代码片段，这是一个BAT脚本中的条件判断语句。该语句使用了IF命令来判断变量"line"的值是否为空字符串或者为"or"。如果满足其中一个条件，就会执行相应的操作。

在BAT脚本中，IF命令用于根据条件来执行不同的操作。它的基本语法如下：

IF condition (
    command1
    command2
    ...
) ELSE (
    command3
    command4
    ...
)

其中，condition是一个条件表达式，可以使用比较运算符（如==、!=、<、>等）和逻辑运算符（如AND、OR、NOT等）来构建条件。如果条件成立，则执行括号内的命令；否则，执行ELSE后面的命令。

回答你的问题，这段代码的意思是：如果变量"line"的值为空字符串或者为"or"，则执行相应的操作。

相关问题

import pygame from pygame.mixer import music import random class Ball(pygame.sprite.Sprite): def __init__(self,image_file,location,speed): pygame.sprite.Sprite.__init__(self) self.image = pygame.image.load(image_file) self.rect = self.image.get_rect() self.rect.left,self.rect.top = location self.speed = speed def move(self): self.rect = self.rect.move(self.speed) if self.rect.left < 0 or self.rect.right > width: self.speed[0] = -self.speed[0] if self.rect.top < 0 and (self.rect.left < 240 or self.rect.right > 400) : self.speed[1] = -self.speed[1] pygame.init() pygame.mixer.init() # 初始化混音器 clock = pygame.time.Clock() pygame.key.set_repeat(500,50) size = width,height = 640,480 screen = pygame.display.set_mode(size) screen.fill([255,255,255]) ball = Ball("desk_ball.png",[320,240],[10,8]) def new_func(Ball): bat = Ball("bat.png",[320,460],[0,0]) return bat bat = new_func(Ball) goal = Ball("goal.png",[240,0],[0,0]) screen.blit(ball.image,ball.rect) pygame.display.set_caption('乒乓球小游戏') #游戏标题 pygame.display.update() score = 0 lives = 5#总共有5个球 music.load("bg.mp3") # 加载背景音乐 music.play(-1) # 循环播放背景音乐，直到程序退出 done = False running = True while running: for event in pygame.event.get(): if event.type == pygame.QUIT: running = False if event.type == pygame.MOUSEMOTION: bat.rect.centerx = event.pos[0] if event.type == pygame.KEYDOWN: if event.key == pygame.K_y and lives == 0: lives = 5 done = False elif event.key == pygame.K_n and lives == 0: running = False if not done: ball.move() if pygame.sprite.collide_rect(ball,bat): ball.speed[1] = -10 if pygame.sprite.collide_rect(ball,goal): score += 1 ball.speed[1] = 10 screen.blit(ball.image,ball.rect) screen.blit(bat.image,bat.rect) for num in range(lives-1): screen.blit(ball.image,[600-num*40,0]) if ball.rect.bottom > height: lives -= 1 ball.rect.left,ball.rect.top = 320,240 if lives == 0: done = True else: over_font = pygame.font.Font(None,50) over_surf = over_font.render("Game over",1,[255,0,0]) screen.blit(over_surf,[240,240]) yn_font = pygame.font.Font(None,40) yn_surf = yn_font.render("Y:continue N:quit",1,[255,0,0]) screen.blit(yn_surf,[210,280]) score_font = pygame.font.Font(None,40) score_surf = score_font.render("score:"+str(score),1,[255,0,0]) screen.blit(score_surf,[0,0]) screen.blit(goal.image,goal.rect) pygame.display.update() clock.tick(20) screen.fill([255,255,255]) pygame.quit()基于这些代码补充在游戏界面加一条分割线

在代码中添加以下代码可以在游戏界面上添加一条分割线：

# 画一条分割线
pygame.draw.line(screen, [0, 0, 0], [0, 240], [640, 240], 5)

将其添加在`screen.fill([255,255,255])`之后，完整代码如下：

import pygame
from pygame.mixer import music
import random

class Ball(pygame.sprite.Sprite):
    def __init__(self,image_file,location,speed):
        pygame.sprite.Sprite.__init__(self)
        self.image = pygame.image.load(image_file)
        self.rect = self.image.get_rect()
        self.rect.left,self.rect.top = location
        self.speed = speed

    def move(self):
        self.rect = self.rect.move(self.speed)
        if self.rect.left < 0 or self.rect.right > width:
            self.speed[0] = -self.speed[0]
        if self.rect.top < 0 and (self.rect.left < 240 or self.rect.right > 400) :
            self.speed[1] = -self.speed[1]

pygame.init()
pygame.mixer.init() # 初始化混音器
clock = pygame.time.Clock()
pygame.key.set_repeat(500,50)

size = width,height = 640,480
screen = pygame.display.set_mode(size)
screen.fill([255,255,255])

ball = Ball("desk_ball.png",[320,240],[10,8])

def new_func(Ball):
    bat = Ball("bat.png",[320,460],[0,0])
    return bat

bat = new_func(Ball)
goal = Ball("goal.png",[240,0],[0,0])

screen.blit(ball.image,ball.rect)
pygame.display.set_caption('乒乓球小游戏') #游戏标题
pygame.display.update()

score = 0
lives = 5#总共有5个球

music.load("bg.mp3") # 加载背景音乐
music.play(-1) # 循环播放背景音乐，直到程序退出

done = False
running = True
while running:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            running = False
        if event.type == pygame.MOUSEMOTION:
            bat.rect.centerx = event.pos[0]
        if event.type == pygame.KEYDOWN:
            if event.key == pygame.K_y and lives == 0:
                lives = 5
                done = False
            elif event.key == pygame.K_n and lives == 0:
                running = False

    if not done:
        ball.move()

        if pygame.sprite.collide_rect(ball,bat):
            ball.speed[1] = -10
        if pygame.sprite.collide_rect(ball,goal):
            score += 1
            ball.speed[1] = 10

        screen.blit(ball.image,ball.rect)
        screen.blit(bat.image,bat.rect)

        for num in range(lives-1):
            screen.blit(ball.image,[600-num*40,0])

        if ball.rect.bottom > height:
            lives -= 1
            ball.rect.left,ball.rect.top = 320,240

        if lives == 0:
            done = True
        else:
            over_font = pygame.font.Font(None,50)
            over_surf = over_font.render("Game over",1,[255,0,0])
            screen.blit(over_surf,[240,240])
            yn_font = pygame.font.Font(None,40)
            yn_surf = yn_font.render("Y:continue N:quit",1,[255,0,0])
            screen.blit(yn_surf,[210,280])
        
        score_font = pygame.font.Font(None,40)
        score_surf = score_font.render("score:"+str(score),1,[255,0,0])
        screen.blit(score_surf,[0,0])

        # 画一条分割线
        pygame.draw.line(screen, [0, 0, 0], [0, 240], [640, 240], 5)

        screen.blit(goal.image,goal.rect)
        pygame.display.update()

        clock.tick(20)
        screen.fill([255,255,255])

pygame.quit()

DELPHI如何启动bat文件并且实时获取CMD中的输出

Delphi中启动.bat文件并实时获取CMD输出，通常通过创建一个进程来实现，可以使用TProcess或者TShellExecuteEx组件。以下是简单的步骤：

1. 使用TProcess组件：
- 创建一个TProcess实例。
- 设置Process.CommandLine属性为.bat文件的路径，如`'cmd /c start "your batch file path" your_batch_file.bat'`。
- 添加事件处理器来监听OnCreate和OnOutput事件。OnCreate事件会在批处理文件开始运行时触发，而OnOutput事件则用于接收命令行的输出。

var
  Process: TProcess;
begin
  Process := TProcess.Create(nil);
  try
    Process.CommandLine := 'cmd /c start "" "C:\path\to\batchfile.bat"';
    Process.OnCreate := Process_CreateHandler; // 自定义OnCreate事件处理器
    Process.OnOutput := Process_Output_Handler; // 自定义OnOutput事件处理器
    Process.Execute;
  finally
    Process.Free;
  end;
  
// 事件处理器示例
procedure Process_Create_Handler(Sender: TObject); begin end;
procedure Process_Output_Handler(Sender: TObject; const Output: string); begin
  // 在这里处理Output字符串，例如显示在文本框或日志中
end;

2. 使用TShellExecuteEx组件：
- 同样设置ShellExecuteEx的FFileName属性为.bat文件路径，并指定SW_HIDE隐藏窗口。
- 通过ShellExecuteEx的WshShell.StdOut属性，你可以读取标准输出（即CMD的输出），然后在回调函数中处理。

uses
  ShellAPI;

var
  ShiExec: TShellExecuteEx;
  hStdOut: HANDLE;
begin
  ShiExec := TShellExecuteEx.Create(nil);
  try
    ShiExec.Filename := 'C:\path\to\batchfile.bat';
    ShiExec.ShowWindow := SW_HIDE;
    
    if (SUCCEEDED(ShiExec.Exec)) then
    begin
      hStdOut := CreateFile(PChar('CONOUT$',LF), GENERIC_READ, FILE_SHARE_READ or FILE_SHARE_WRITE, nil, OPEN_EXISTING, 0, 0);
      if (hStdOut <> INVALID_HANDLE_VALUE) then
      begin
        // 读取并处理CMD输出
        // 示例：ReadAllText(hStdOut, OutputBuffer)
        CloseHandle(hStdOut);
      end;
    end;
  finally
    ShiExec.Destroy;
  end;
end;