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我正在尝试为网站上的某些术语创建唯一名称和网格位置的列表。尽管我的代码看起来有点复杂，但我认为我想实现的目标非常简单。获取循环的总循环数INSIDE另一个循环
我已经创建了一个枚举for循环内另一个枚举for循环，我在我的代码中的星星我想输入的东西，将反映该程序执行循环的总数。因此，如果我的名为“watch_link_urls”的第一个列表是4个项目，而名为“watch_model_description”的第二个列表是7个项目，那么我应该总共有28个循环。我应该在包含星号的括号中放置什么，以便变量“watch_model_description”和“watch_model_description_grid”会一直读到“category_1 =”...，“category_2 =”...等等直至“category_28”？
watch_model_description_list = []
watch_model_description_grid_list = [] for num, url in enumerate(watch_link_urls):
dennisov_model_html = urlopen(url).read()
watch_model_description = findall("dib_02'\>([A-Z \/0-9]+)\<", dennisov_model_html)
for number, category in enumerate(watch_model_description):
watch_model_description = 'category_' + str(**********) + ' = Label(window, text = "'+ category +'")'
watch_model_description_grid = 'category_' + str(**********) + '.grid(padx = 5, pady = 0, row = ' + str(number+3) + ', column = '+ str(num) +')'
编辑：包括以下全部代码，以帮助调试
from Tkinter import Tk, Button, Canvas, END, Spinbox, PhotoImage, Label
from ttk import Progressbar, Combobox
from urllib import urlopen
from re import findall
import re
import itertools
import urllib
## Create a window
window = Tk()
## Give the window a title
window.title('Watch finder')
## Show Dennisov image logo
dennisov_logo_url = "http://i.imgur.com/KD6AK08.gif"
handle = urlopen(dennisov_logo_url)
data = handle.read()
raw_image = PhotoImage(master = window, data = data)
Label(window, image = raw_image, width = 600).grid(row = 0, column = 0, columnspan = 10)
handle.close
## Types of Dennisov watches
dennisov_type_list = ['Barracuda Limited','Barracuda Chronograph',
'Barracuda Mechanical','Speedster','Free Rider',
'Nau Automatic','Lady Flower','Enigma','Number One']
dennisov_file = open('dennisov_url.html', 'w')
dennisov_file.write('''
<!DOCTYPE html>
<html>
<head>
<title>Watches</title>
</head>
<body>
''')
#### Display the quanity of watches available for each type
##quantity_box = len(watch_option)
##
####
##for watch, number in enumerate(watch_option):
## watch_number_name = watch_option[number][0]
## watch_number_image = watch_option[number][1]
## watch_number_price = watch_option[number][2]
## watch_number_link = watch_option[(number)][3]
#### dennisov_file.write('<h1>' + watch_number_name + '</h1>')
## print watch_number_image
#### dennisov_file.write('<img src="' + watch_number_image + '">\n')
## print watch_number_price
#### dennisov_file.write('<h2>' + watch_number_price + '</h2>')
## print watch_number_link
#### dennisov_file.write('<a href="'+watch_number_link+'">'+watch_number_link+'</a>')
##
dennisov_file.write('''
</body>
</html>
''')
## Define function for button push
def display_choice():
dennisov_type_selection = (dennisov_dropdown_box.get())
if dennisov_type_selection == 'Barracuda Limited':
dennisov_type = 'barracuda_limited'
elif dennisov_type_selection == 'Barracuda Chronograph':
dennisov_type = 'barracuda_chronograph'
elif dennisov_type_selection == 'Barracuda Mechanical':
dennisov_type = 'barracuda_mechanical'
elif dennisov_type_selection == 'Speedster':
dennisov_type = 'speedster'
elif dennisov_type_selection == 'Free Rider':
dennisov_type = 'free_rider'
elif dennisov_type_selection == 'Nau Automatic':
dennisov_type = 'nau_automatic'
elif dennisov_type_selection == 'Lady Flower':
dennisov_type = 'lady_flower'
elif dennisov_type_selection == 'Enigma':
dennisov_type = 'enigma'
elif dennisov_type_selection == 'Number One':
dennisov_type = 'number_one'
dennisov_url = 'https://denissov.ru/en/'+ dennisov_type + '/'
dennisov_url_subpage = dennisov_url[19:]
## dennisov_url_subpage_subpage = dennisov_url_subpage[
## Make the html document just created equal to an opened and read URL????
##???????????????????????????????????????????????????????????????????
dennisov_html = urlopen(dennisov_url).read()
## Replace instances of double quotation marks in the text with singles
## so that the findall regex code does not get confused
dennisov_html = dennisov_html.replace('"', "'")
## Find all of the images of the watches. Each watch image starts with the text
## "img src=". Do not match those with any " symbols in the URL
watch_image_urls = findall("<img src='(/files/collections/o[^']*)'", dennisov_html)
## Add the URL domain to each watch image subpage to create full addresses
watch_image_urls = ['https://denissov.ru' + remainder for remainder in watch_image_urls]
## dennisov_file.write(' <img src="' + image + '">\n')
## Download and save the PNG images to the directory as GIFs so that
## Tkinter can use them
## Return the watch type. The watch type is in a title tag called "titlusref"
## and can be any combination of letters and spaces, followed by a space and
## "<" symbol.
watch_type = findall("titlusref'\>([a-zA-Z]+ *[a-zA-Z]*) *\<", dennisov_html)[0]
## Find all of the links when each watch is clicked. Each watch link starts
## with the text "a href=" followed by the subpage, followed by any
## letter, number and "_" symbol combination, followed by a backslash
watch_link_urls = findall("a href='" + (dennisov_url_subpage) + "([A-Za-z0-9_]+/)", dennisov_html)
## Add the main URL to each watch subpage
watch_link_urls = [str(dennisov_url) + remainder for remainder in watch_link_urls]
## Find all of the model numbers of each watch. Each model starts with the text
## "covername" then any combination of letters, dots and spaces.
watch_models = findall("covername'>([A-Z a-z0-9\.]+)", dennisov_html)
## Add the watch type to each watch model, seperated by a space, to create the
## full watch names
watch_names = [str(watch_type) + " " + remainder for remainder in watch_models]
## Get current USD to AUD exchange rate using a known currency website
currency_converter_url = 'http://www.xe.com/currencyconverter/convert/?From=USD&To=AUD'
currency_html = urlopen(currency_converter_url).read()
## Replace instances of double quotation marks in the text with singles
## so that the findall regex code does not get confused
currency_html = currency_html.replace('"', "'")
## Find the exchange rate. The exchange rate starts with "uccResultAmount'>"
## and is then followed by any combination of numbers with a decimal place
exchange_rate = float(findall("uccResultAmount'\>([0-9]+\.[0-9]*)", currency_html)[0])
## Find the price of the models and make into floats. Each model price contains
## numbers followed by the text "USD"
USD_watch_prices = [float(price) for price in (findall("([0-9]*) usd", dennisov_html))]
## Convert the USD watch prices to current AUD prices and round to 2 decimals
watch_prices = [round(exchange_rate*price, 2) for price in USD_watch_prices]
## Add the currency to the prices
watch_prices = ["AU $" + str(price) for price in watch_prices]
## Match each watch name to its image and URL inside a tuple and place each
## tuple inside a list
watch_list = zip(watch_names, watch_image_urls, watch_prices, watch_link_urls)
## For each watch tuple (matching image, name and URL), assign a watch number
watch_option = {'watch_{}'.format(i): e for i, e in enumerate(watch_list)}
## CREATE A LIST OF MODEL DESCRIPTIONS ACCORDING TO THE TYPE OF WATCH SELECTED:
## > Read each model HTML link in watch_link_urls.
## > Search for the terms starting with dib_02 followed by any combination of capital
## letters, numbers and backslashes.
## > Insert Tkinter instructions to each result as strings
## > Append the results to a list called watch_model_description_list.
watch_model_description_list = []
watch_model_description_grid_list = []
for num, url in enumerate(watch_link_urls):
dennisov_model_html = urlopen(url).read()
dennisov_model_html = dennisov_model_html.replace('"', "'")
watch_model_description = findall("dib_02'\>([A-Z \/0-9]+)\<", dennisov_model_html)
for number, category in enumerate(watch_model_description):
watch_model_description = 'category_' + str(loop_count) + ' = Label(window, text = "'+ category +'")'
watch_model_description_grid = 'category_' + str(loop_count) + '.grid(padx = 5, pady = 0, row = ' + str(number+3) + ', column = '+ str(num) +')'
watch_model_description_list.append(watch_model_description)
watch_model_description_grid_list.append(watch_model_description_grid)
loop_count += 1
model_option = {'model_{}'.format(i):e for i, e in enumerate(watch_model_description_list)}
model_grid_option = {'model_grid{}'.format(i):e for i, e in enumerate(watch_model_description_grid_list)}
model_grid_option_string = '\n'.join(model_grid_option.values())
model_option_string = '\n'.join(model_option.values())
print watch_model_description_list
print watch_model_description_grid_list
print model_option_string
print model_grid_option_string
## models_option = {'model_{}'.format(i):e for i, e in enumerate(watch_model_description_list)}
## models_option_string = '\n'.join(models_option.values())
## print models_option_string
##watch_model_description_list.append(watch_model_description)
## Create a description for each watch model
## models_list = []
## models_grid_list = []
## for number, category in enumerate(watch_model_description_list):
## models_grid = 'model_' + str(category) + '.grid(padx = 0, pady = 0, row = ' + str(category) + ', column = '+ str(number) +')'
## models_list.append(models)
## models_grid_list.append(models_grid)
## models_option = {'model_{}'.format(i):e for i, e in enumerate(models_list)}
## models_option_string = '\n'.join(models_option.values())
## models_grid_option = {'model_grid_{}'.format(i):e for i, e in enumerate(models_grid_list)}
## models_grid_option_string = '\n'.join(models_grid_option.values())
## exec(models_option_string)
## exec(models_grid_option_string)
## print models_option_string
## print models_grid_option_string
## Create a spinbox
spinbox_list = []
spinbox_grid_list = []
for number, watch in enumerate(watch_names):
spinbox = 'spinbox_' + str(number) + ' = Spinbox(window, width = 3, from_=0, to=10)'
spinbox_grid = 'spinbox_' + str(number) + '.grid(padx = 0, pady = 0, row = 9, column = '+ str(number) +')'
spinbox_list.append(spinbox)
spinbox_grid_list.append(spinbox_grid)
spinbox_option = {'spinbox_{}'.format(i):e for i, e in enumerate(spinbox_list)}
spinbox_option_string = '\n'.join(spinbox_option.values())
spinbox_grid_option = {'spinbox_grid_{}'.format(i):e for i, e in enumerate(spinbox_grid_list)}
spinbox_grid_option_string = '\n'.join(spinbox_grid_option.values())
exec(spinbox_option_string)
exec(spinbox_grid_option_string)
prices_list = []
prices_grid_list = []
for number, watch in enumerate(watch_prices):
prices = 'price_' + str(number) + ' = Label(window, text = "'+ watch +'")'
prices_grid = 'price_' + str(number) + '.grid(padx = 5, pady = 0, row = 8, column = '+ str(number) +')'
prices_list.append(prices)
prices_grid_list.append(prices_grid)
prices_option = {'price_{}'.format(i):e for i, e in enumerate(prices_list)}
prices_option_string = '\n'.join(prices_option.values())
prices_grid_option = {'price_grid_{}'.format(i):e for i, e in enumerate(prices_grid_list)}
prices_grid_option_string = '\n'.join(prices_grid_option.values())
exec(prices_option_string)
exec(prices_grid_option_string)
names_list = []
names_grid_list = []
for number, watch in enumerate(watch_names):
names = 'name_' + str(number) + ' = Label(window, text = "'+ watch +'")'
names_grid = 'name_' + str(number) + '.grid(padx = 5, pady = 0, row = 10, column = '+ str(number) +')'
names_list.append(names)
names_grid_list.append(names_grid)
names_option = {'name_{}'.format(i):e for i, e in enumerate(names_list)}
print names_list
names_option_string = '\n'.join(names_option.values())
names_grid_option = {'name_grid_{}'.format(i):e for i, e in enumerate(names_grid_list)}
names_grid_option_string = '\n'.join(names_grid_option.values())
exec(names_option_string)
exec(names_grid_option_string)
## dennisov_model_selection = Canvas(window, width = 400, height = 850,
## bg = 'white')
## dennisov_model_selection.grid(padx = 2, pady = 2, row = 1,
## column = 0, rowspan = 15, columnspan = 3)
## Create dropdown box text
dennisov_dropdown_text = Label(window, text = "Watch type:", bg = 'White', width = 20)
## Create the dropdown box for the Dennisov watch types
dennisov_dropdown_box = Combobox(window, width = 25,
values = dennisov_type_list)
## Create Dennisov type selection button
dennisov_select_button = Button(window, text = 'Select', command = display_choice, width = 20)
## Locate elements on grid
dennisov_dropdown_text.grid(pady = 2, padx = 2, row = 1, columnspan = 9, sticky = 'W')
dennisov_dropdown_box.grid(pady = 2, padx = 2, row = 1, columnspan = 9, sticky = 'N')
dennisov_select_button.grid(pady = 2, padx = 2, row = 1, columnspan = 9, sticky = 'E')
dennisov_file.close()
window.mainloop()
回路计数应该在内部for-loop范围。 – schillingt
@schillingt修正:) – TheGirrafish
由于某些原因，诸如+ =之类的许多功能都不适用于我的Python。我运行2.7，并得到错误“loop_count + = 1 UnboundLocalError：本地变量'loop_count'在作业之前引用” – user88720