Question

气泡（白色圆圈）没有出现，这是我的代码：

from tkinter import *
from random import randint
from time import sleep, time
from math import sqrt
HEIGHT = 500
WIDTH = 800
window = Tk()
window.title('Bubble Blaster')
c = Canvas(window, width=WIDTH, height=HEIGHT, bg='darkblue')
c.pack()
ship_id = c.create_polygon(5, 5, 5, 25, 30, 15, fill='green')
ship_id2 = c.create_oval(0, 0, 30, 30, outline='green')
SHIP_R = 15
MID_X = WIDTH / 2
MID_Y = HEIGHT / 2
c.move(ship_id, MID_X, MID_Y)
c.move(ship_id2, MID_X, MID_Y)
SHIP_SPD = 10
def move_ship(event):
    if event.keysym == 'Up':
        c.move(ship_id, 0, -SHIP_SPD)
        c.move(ship_id2, 0, -SHIP_SPD)
    if event.keysym == 'Down':
        c.move(ship_id, 0, SHIP_SPD)
        c.move(ship_id2, 0, SHIP_SPD)
    if event.keysym == 'Left':
        c.move(ship_id, -SHIP_SPD, 0)
        c.move(ship_id2, -SHIP_SPD, 0)
    if event.keysym == 'Right':
        c.move(ship_id, SHIP_SPD, 0)
        c.move(ship_id2, SHIP_SPD, 0)
c.bind_all('<Key>', move_ship)
bub_id = list()
bub_r = list()
bub_speed = list()
MIN_BUB_R = 10
MAX_BUB_R = 30
MAX_BUB_SPD = 10
GAP = 100
def create_bubble():
    x = WIDTH + GAP
    y = randint(0,HEIGHT)
    r = randint(MIN_BUB_R, MAX_BUB_R)
    id1 = c.create_oval(x - r, y - r, x + r, y + r, outline='white')
    bub_id.append
    bub_r.append(id1)
    bub_speed.append(randint(1, MAX_BUB_SPD))
def move_bubbles():
    for i in range(len(bub_id)):
        c.move(bub_id[i], -bub_speed[i], 0)
def clean_up_bubs():
    for i in range(len(bub_id)-1, -1, -1):
        x, y = get_coords(bub_id[i])
        if x < -GAP:
            del_bubble(i)
def collision():
    points = 0
    for bub in range(len(bub_id)-1, -1, -1):
        if distance(ship_id2, bub_id[bub]) < (SHIP_R + bub_r[bub]):
            points += (bub_r[bub] + bub_speed[bub])
            del_bubble(bub)
        return points
def get_coords(id_num):
    pos = c.coords(id_num)
    x = (pos[0] + pos[2])/2
    y = (pos[1] + pos[3])/2
    return x, y
def del_bubble(i):
    del bub_r[i]
    del bub_speed[i]
    c.delete(bub_id[i])
    del bub_id[1]
def distance(id1, id2):
    x1, y1 = get_coords(id1)
    x2, y2 = get_coords(id2)
    return sqrt((x2 - x1)**2 + (y2 - y1)**2)
c.create_text(50, 30, text='TIME', fill='blue' )
c.create_text(150, 30, text='SCORE', fill='yellow' )
time_text = c.create_text(50, 50, fill='blue' )
score_text = c.create_text(150, 50, fill='yellow' )
def show_score(score):
    c.itemconfig(score_text, text=str(score))
def show_time(time_left):
    c.itemconfig(time_text, text=str(time_left))
BUB_CHANCE = 10
TIME_LIMIT = 30
BONUS_SCORE = 1000
bonus = 0
thend = time() + TIME_LIMIT
score = 0
#MAIN GAME LOOP
while time() < thend:
    chance = randint(1, BUB_CHANCE)
    if chance == 1:
        create_bubble()
        move_bubbles()
        clean_up_bubs()
        score = collision()
    if score == BONUS_SCORE:
        bonus += 1
        end += TIME_LIMIT
    show_time(int(thend - time()))
    show_score(score)
    print(score)
    clean_up_bubs
    window.update()
    sleep(0.01)
c.create_text(MID_X, MID_Y, \
              text='GAME OVER', fill='red', font=('Helevica', 30))
c.create_text(MID_X, MID_Y + 30, \
              text='Score: '+ str(score), fill='yellow')
c.create_text(MID_X, MID_Y + 45, \
              text='Bonus time: '+ str(bonus*TIME_LIMIT), fill='green')

我需要帮助！如果您能帮助我，那太好了！如果您想知道气泡是使用tkinter和python-3.5使用闲置编辑器绘制的白色圆圈，则闲置什么也没说，但是我知道有些问题，因为气泡（白色圆圈）没有出现。如果有任何问题，请通知我。

Answer 1

要调用函数，必须使用括号。函数名称计算为一个函数对象。在括号后（通常带有参数），然后说“调用此函数”。

所以 bub_id.append bub_r.append（id1）

应该是

bub_id.append(id1)
bub_r.append(r)

进行此更改后，会出现气泡。

类似地，cleanup-bubs应该是cleanup-bubs()。呼叫失败，并显示

Traceback (most recent call last):
  File "F:\Python\a\tem3.py", line 97, in <module>
    clean_up_bubs()
  File "F:\Python\a\tem3.py", line 53, in clean_up_bubs
    x, y = get_coords(bub_id[i])
  File "F:\Python\a\tem3.py", line 65, in get_coords
    x = (pos[0] + pos[2])/2
IndexError: list index out of range

我会让你调查一下。

我删除了python-3.5和python-idle标记，因为异常行为与IDLE或3.5无关。

使用while，sleep和update编写自己的事件循环不是使用Tkinter的最佳方法。该应用程序在睡眠期间将不会响应事件（例如按键）。对按键的响应可能与睡眠时间一样大。查看SO tkinter示例，了解如何使用mainloop和after方法。

由于某些原因气泡没有出现

1 个答案: