Question

我想通过按钮使用bot_create函数，但是（在第20行上）我不断遇到“ bots not defined”的问题，因此我将函数移至按钮下方，但出现了“ bot_create not defined”的问题。使用C ++并没有遇到这个问题，我是Python的新手。我应该如何安排功能？

import tkinter as tk
import numpy as np
import multiprocessing as mp


bots_max = 1000 # Maximum number of bots
bot = []
bot_count = 0

# Menu functions
def save_field():
    pass

# Field functions
def field_clear():
    pass

# Bots functions
def bots_create():
    bot[bot_count] = bots
    bot_count += 1

main = tk.Tk()

field_sides = 600
ctrls_width = 200
main.geometry("800x600")
main.resizable(0, 0)
main.title("Swarm Simulator v1.0")



# Controls menu on left side
button1 = tk.Button(main, text = "Button 1").pack(side = "left", command = bots_create())



class environment:

    def __init__():
        pass

    class wall:
        def __init__():
            pass

# Bots
class bots:

    alive = True

    def __init__():
        alive = True



# Field where bots live
field = tk.Canvas(main, width = field_sides, height = field_sides, bg = "white").pack(side = "right")
for particle in bots:
    print("|")

main.mainloop()

Answer 1

这是您的代码的一个版本，可修复所有语法问题，因此可以进行编译（我的意思是我的IDE现在认为可以）。它也可以运行，但是我不知道它是否达到了您的预期。在代码中查看我的评论：

import tkinter as tk
import numpy as np
import multiprocessing as mp


# moved your class defs up to fix problems with accessing them before they are defined

class environment:

    def __init__(self):   # need a self param here
        pass

    class wall:
        def __init__(self):   # need a self param here
            pass

# Bots
class bots:

    alive = True

    def __init__(self):   # need a self param here
        alive = True

bots_max = 1000 # Maximum number of bots
bot = []
# bot_count = 0  # this no longer does anything.  use `len(bot)` to get the number of objects in the 'bot' list

# Menu functions
def save_field():
    pass

# Field functions
def field_clear():
    pass

# Bots functions
def bots_create():
#    bot[bot_count] = bots   # this will crash as it is referring to a non-existent location in the list
                             # also, your use of "bots" here makes no sense
#    bot_count += 1          # this makes 'bot_count' a local variable, which is not what you want
    bot.append(bots())       # not sure this is what you want, but this creates a new 'bots' object and adds it to the 'bot' list

main = tk.Tk()

field_sides = 600
ctrls_width = 200
main.geometry("800x600")
main.resizable(0, 0)
main.title("Swarm Simulator v1.0")



# Controls menu on left side
button1 = tk.Button(main, text = "Button 1").pack(side = "left", command = bots_create())



# Field where bots live
field = tk.Canvas(main, width = field_sides, height = field_sides, bg = "white").pack(side = "right")
for particle in bot:   # maybe you want to iterate over the 'bot' list instead of the 'bots' type?
    print("|")

main.mainloop()

正如@khelwood所说，似乎您应该按照使用方式来交换名称bot和bots的使用

Answer 2

感谢您的帮助。我现在遇到了其他一些问题。我正在尝试在单击的地方生成新的机器人，但是我在网上发现的功能并没有太大帮助。

def click(event):
    x = event.x
    y = event.y
    field.bind('<Button-1>', click)
    return x, y

class bot:

    alive = True

    def __init__(self, pos_x, pos_y, bot_type, alive):
        alive = True

    def Create_single():
        # Create single bot on mouse click
        pos_x, pos_y = click(event)
        bots.append(bot(pos_x, pos_y, bot_type, True))
        bots_type_count[int((bot_type)-1)] += 1

我无法使click（）函数正常工作。

Python-函数和执行顺序

2 个答案: