part_A(:,1:2) 用python怎么写
时间: 2024-03-16 17:43:59 浏览: 12
在Python中,如果 `part_A` 是一个二维数组或矩阵,您可以使用以下方式来选择第1和第2列:
```python
part_A[:, 0:2]
```
其中, `:` 表示选择所有行, `0:2` 表示选择第0列和第1列(Python中索引从0开始)。这将返回一个新的数组或矩阵,其中包含 `part_A` 的第1和第2列。
相关问题
[freemocap.core_processes.export_data.blender_stuff.call_blender_subprocess_methods:call_blender_subprocess_megascript_take2():147]
As an AI language model, I can only guess what this code might be doing based on common programming practices. It appears to be a function within a Python module called "call_blender_subprocess_methods," which is part of a larger package called "freemocap."
The function is called "call_blender_subprocess_megascript_take2" and takes no arguments. Within the function, there is a line of code that references line number 147, suggesting that this function has been updated or modified at some point.
Without more context or information, it is difficult to determine exactly what this function does. However, based on the name of the module ("export_data") and the package name ("freemocap"), it is possible that this function is related to exporting motion capture data from a program like Blender. The function may be calling subprocess methods within Blender to accomplish this task.
用python写一个贪吃蛇
好的,下面是一个简单的贪吃蛇游戏的 Python 代码:
```python
import pygame
import random
# 初始化游戏
pygame.init()
# 设置游戏窗口的尺寸
screen_width = 640
screen_height = 480
screen = pygame.display.set_mode((screen_width, screen_height))
# 设置游戏的标题
pygame.display.set_caption("贪吃蛇")
# 定义颜色常量
black = (0, 0, 0)
white = (255, 255, 255)
red = (255, 0, 0)
green = (0, 255, 0)
blue = (0, 0, 255)
# 定义贪吃蛇的初始位置和移动方向
snake_x = 320
snake_y = 240
snake_direction = "right"
# 定义食物的初始位置
food_x = random.randint(0, screen_width - 10)
food_y = random.randint(0, screen_height - 10)
# 定义贪吃蛇的身体列表和初始长度
snake_body = []
snake_length = 3
# 游戏循环
game_over = False
while not game_over:
# 处理事件
for event in pygame.event.get():
if event.type == pygame.QUIT:
game_over = True
elif event.type == pygame.KEYDOWN:
if event.key == pygame.K_LEFT:
snake_direction = "left"
elif event.key == pygame.K_RIGHT:
snake_direction = "right"
elif event.key == pygame.K_UP:
snake_direction = "up"
elif event.key == pygame.K_DOWN:
snake_direction = "down"
# 移动贪吃蛇的头部
if snake_direction == "left":
snake_x -= 10
elif snake_direction == "right":
snake_x += 10
elif snake_direction == "up":
snake_y -= 10
elif snake_direction == "down":
snake_y += 10
# 判断贪吃蛇是否吃到了食物
if snake_x == food_x and snake_y == food_y:
food_x = random.randint(0, screen_width - 10)
food_y = random.randint(0, screen_height - 10)
snake_length += 1
# 绘制游戏界面
screen.fill(black)
pygame.draw.rect(screen, white, [food_x, food_y, 10, 10])
snake_head = [snake_x, snake_y]
snake_body.append(snake_head)
if len(snake_body) > snake_length:
del snake_body[0]
for body_part in snake_body:
pygame.draw.rect(screen, green, [body_part[0], body_part[1], 10, 10])
pygame.display.update()
# 判断贪吃蛇是否碰到了边界或者自己的身体
if snake_x < 0 or snake_x > screen_width - 10 or snake_y < 0 or snake_y > screen_height - 10:
game_over = True
for body_part in snake_body[:-1]:
if body_part == snake_head:
game_over = True
# 退出游戏
pygame.quit()
```
这是一个非常简单的贪吃蛇游戏,没有添加任何的音效和游戏结束的提示。如果你想让游戏更加完整,可以添加其他的功能,比如计分、音效、更好的游戏界面等等。