Python没有对象属性错误

Question

import turtle as tu
import random as ra
import time
tu.setup(1.0,1.0)
tu.bgcolor('black')
tu.title("雪花")
t=tu.pen()
t.ht()
colors=['white']
class Snow():
    def __int__(self):
        self.r=ra.uniform(2,4)
        self.x=ra.randint(-1000,1000)
        self.y=ra.randint(500,1000)
        self.speed=ra.randint(5,20)
        self.color=ra.choice(colors)
        self.outline=2
    # def snow(self):
    #      t.pensize(self.outline)
    #      t.penup()
    #      t.goto(self.x,self.y)
    #      t.pendown()
    #      t.color(self.color)
    #      t.begin_fill()
    #      t.fillcolor("white")
    #      t.circle(self.r)
    #      t.end_fill()
    def snow(self):
        x=self.r
        t.pensize(self.outline)
        t.penup()
        t.goto(self.x,self.y)
        t.pendown()
        t.color(self.color)
        for i in range(6):
               t.forward(x*5)
               t.backward(x*2)
               t.left(60)
               t.forward(x*2)
               t.backward(x*2)
               t.right(120)
               t.forward(x*2)
               t.backward(x * 2)
               t.left(60)
               t.backward(x*3)
               t.right(60)
    def move(self):
        if self.y>=-500:
               self.y-=self.speed
        else:
               self.r=ra.uniform(2,4)
               self.x=ra.randint(-1000,1000)
               self.y=500
               self.speed=ra.randint(5,20)
               self.color=ra.choice(colors)
               self.outline=2
Snow    =   []
for i in range(595):
    Snow.append(Snow())
t.penup()
t.goto(0,0)
t.pendown()
t.pencolor("white")
t.write("张万森",align="center",font=("Comic Sans MS",66,"bold"))
time.sleep(1)
t.clear()
time.sleep(1)
t.write("下雪了",align="center",font=("Comic Sans MS",66,"bold"))
time.sleep(1)
t.clear()
time.sleep(1)
while True:
    tu.tracer(0)
    t.clear()
    t.penup()
    t.goto(0,0)
    t.pendown()
    t.write("我好想你",align="center",font=("Comic Sans MS",66,"bold"))
    for i in range(199):
        Snows[i].move()
        Snows[i].snow()
    tu.update()

Answer 1

变量被错误地赋值或使用
还有 Python 类的构造函数是__init__ ，而不是 __int__。
你创建了一个名为 Snow 的类，但在创建实例时也使用了 Snow 作为变量名。这会导致类名被覆盖。建议将实例列表命名为其他不同于类名的名称

import turtle as tu
import random as ra
import time

tu.setup(1.0, 1.0)
tu.bgcolor('black')
tu.title("雪花")

colors = ['white']

class Snow:
    def __init__(self):
        self.r = ra.uniform(2, 4)
        self.x = ra.randint(-1000, 1000)
        self.y = ra.randint(500, 1000)
        self.speed = ra.randint(5, 20)
        self.color = ra.choice(colors)
        self.outline = 2

    def snow(self):
        x = self.r
        tu.pensize(self.outline)
        tu.penup()
        tu.goto(self.x, self.y)
        tu.pendown()
        tu.color(self.color)
        for i in range(6):
            tu.forward(x*5)
            tu.backward(x*2)
            tu.left(60)
            tu.forward(x*2)
            tu.backward(x*2)
            tu.right(120)
            tu.forward(x*2)
            tu.backward(x * 2)
            tu.left(60)
            tu.backward(x*3)
            tu.right(60)

    def move(self):
        self.y -= self.speed
        if self.y < -500:
            self.r = ra.uniform(2, 4)
            self.x = ra.randint(-1000, 1000)
            self.y = 500
            self.speed = ra.randint(5, 20)
            self.color = ra.choice(colors)
            self.outline = 2

snows = [Snow() for _ in range(595)]

tu.penup()
tu.goto(0, 0)
tu.pendown()
tu.pencolor("white")

messages = ["张万森", "下雪了", "我好想你"]
for message in messages:
    tu.write(message, align="center", font=("Comic Sans MS", 66, "bold"))
    time.sleep(1)
    tu.clear()

while True:
    tu.tracer(0)
    tu.clear()
    tu.penup()
    tu.goto(0, 0)
    tu.pendown()
    tu.write("我好想你", align="center", font=("Comic Sans MS", 66, "bold"))
    for snow in snows:
        snow.move()
        snow.snow()
    tu.update()