Question

我想将“ CAT”一词变成一个按钮，因此单击它时会说“ CAT”。另外，当我想要的按钮不是按钮时，它应该处于单词现在正确的位置。需要提供任何帮助。谢谢

我已经尝试过tkinter模块，但是问题在于它使用按钮打开了一个单独的窗口。我想要的是主屏幕上的按钮。

import turtle
screen = turtle.Screen()

# this assures that the size of the screen will always be 400x400 ...
screen.setup(800,800)
turtle.ht()
turtle.penup()
turtle.goto (50, 200)
turtle.color("black")
turtle.write("CAT", move=False, align="center", font=("Times New Roman", 120, "bold"))
screen.bgpic("background.gif")
turtle.st()
turtle.forward(145)
turtle.left(90)
turtle.forward(10)
turtle.pendown()
turtle.forward(110)
turtle.left(90)
turtle.forward(287)
turtle.left(90)
turtle.forward(110)
turtle.left(90)
turtle.forward(287)
turtle.ht()

我希望输出在屏幕顶部显示一个巨大的按钮（黑色），并显示“ CAT”。当按下该按钮时，我希望它大声说出“ CAT”。现在，顶部仅显示“ CAT”文本。我想用一个表示相同内容的按钮替换该文本。如果我在屏幕上单击，则希望单击位于特定的坐标中。我该怎么做。谢谢！

Answer 1

点击屏幕时，您可以使用turtle do draw rectangle which could look like button. And you can use onscreenclick（check_button）to run function check_button`。如果单击矩形，则它可以运行执行某些功能的函数。

import turtle

def show_cat():
    turtle.ht()
    turtle.penup()
    turtle.goto (15, 220)
    turtle.color("black")
    turtle.write("CAT", move=False, align="center", font=("Times New Roman", 120, "bold"))

def check_button(x, y):
    if -300 < x < 300 and 200 < y < 400:
        show_cat()

screen = turtle.Screen()
screen.setup(800,800)

turtle.penup()
turtle.goto(-300, 200)
turtle.pendown()
turtle.begin_fill()
turtle.fillcolor('red')
turtle.fd(600)
turtle.left(90)
turtle.fd(300)
turtle.left(90)
turtle.fd(600)
turtle.left(90)
turtle.fd(300)
turtle.left(90)
turtle.end_fill()

turtle.onscreenclick(check_button)

turtle.mainloop()

或者您可以将tk.Button作为其父项使用canvas.master，并使用create_window(x, y, window=widget)

将其放在画布上

import turtle
import tkinter as tk

def show_cat():
    turtle.ht()
    turtle.penup()
    turtle.goto (15, 220)
    turtle.color("black")
    turtle.write("CAT", move=False, align="center", font=("Times New Roman", 120, "bold"))

screen = turtle.Screen()
screen.setup(800,800)

canvas = screen.getcanvas()

button = tk.Button(canvas.master, text="Click Me", command=show_cat)
canvas.create_window(0, 0, window=button)

#canvas.create_rectangle((100, 100, 700, 300))

turtle.mainloop()

以相同的方式将其他tkinter的小部件放置在画布上

编辑：带有更多小部件的示例

import turtle
import tkinter as tk

def show_cat():
    label = tk.Label(canvas.master, text="Cat", font=("Times New Roman", 120, "bold"))
    canvas.create_window(0, -300, window=label)

    canvas.create_text(0, 300, text="HELLO", fill="red", font=("Times New Roman", 120, "bold"))

#-------------------------------------------

screen = turtle.Screen()
screen.setup(800,800)

canvas = screen.getcanvas()

button = tk.Button(canvas.master, text="Click Me", command=show_cat)
canvas.create_window(0, 0, window=button)

turtle.mainloop()

Answer 2

我们可以利用turtle的面向对象特性来定义我们自己的可重用按钮类，以生成多个按钮：

from turtle import Screen, Turtle

class Button(Turtle):
    FONT_NAME, FONT_SIZE, FONT_TYPE = 'Arial', 18, 'normal'

    HORIZONTAL_PAD, VERTICAL_PAD = 1.05, 1.15

    def __init__(self, text, position, command=None):
        super().__init__(visible=False)
        self.speed('fastest')
        self.penup()

        self.text = text
        self.position = position
        self.command = command

        self.width, self.height = self.drawButton()

    def drawButton(self):
        x, y = self.position
        self.setposition(x, y - self.FONT_SIZE/2)
        button_font = (self.FONT_NAME, self.FONT_SIZE, self.FONT_TYPE)
        self.write(self.text, align='center', move=True, font=button_font)

        width = 2 * (self.xcor() - x) * self.HORIZONTAL_PAD
        height = self.FONT_SIZE * self.VERTICAL_PAD

        self.setposition(x - width/2, y - height/2)
        self.pendown()

        for _ in range(2):
            self.forward(width)
            self.left(90)
            self.forward(height)
            self.left(90)

        self.penup()

        return width, height

    def clickButton(self, x, y):
        c_x, c_y = self.position
        half_w, half_h = self.width/2, self.height/2

        if c_x - half_w < x < c_x + half_w and c_y - half_h < y < c_y + half_h:
            (self.command)(x, y)

screen = Screen()

cyan = Button("Cyan Background", (100, 100), lambda x, y: screen.bgcolor('cyan'))

screen.onclick(cyan.clickButton, add=True)

yellow = Button("Yellow Background", (-100, -100), lambda x, y: screen.bgcolor('yellow'))

screen.onclick(yellow.clickButton, add=True)

screen.mainloop()

随心所欲地模样。

如何使python文本变成python turtle中的按钮？

2 个答案: