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我正在爲我的作業製作一個電影網站，但我已經收到了我還沒學過的代碼。如何使打印不可見（網頁創建）？
我正在使用3個文件，所以我可以利用我的學習類對象。
我遇到了其中一個問題。 （如下所示）。
我使用此代碼來處理所有我設置的電影的細節（參數）。 我已經設置了我的參數=None，因爲我列出的一些電影經過該過程的功能少於所需的參數。即在html文件中，它導致文本輸出'None'。
import webbrowser
# Uses class method to organise movie contents.
#INPUT (1)title, (2)description, (3)poster image url, (4)youtube trailer, (5)running time/duration (6)number of season, (7)number of episode, (8)tv station
#all arguments uses string elements.
class Movie():
"""This class provides a way to store movie and tv shows related information"""
def __init__(self, movie_title, movie_storyline, poster_image, trailer_youtube, duration_time=None, number_of_seasons=None, tv_station=None):
self.title = movie_title
self.storyline = movie_storyline
self.poster_image_url = poster_image
self.trailer_youtube_url = trailer_youtube
# blank = ' '
# if duration_time == True:
# return blank
# else:
self.duration = duration_time
self.seasons = number_of_seasons
self.station = tv_station
def show_trailer(self):
"""Opens Trailer in webbrowser"""
webbrowser.open(self.trailer_youtube_url)
下面是它的屏幕截圖 - 我突出顯示了它在哪裏打印出文本'無'。 
我該如何更改爲文字，而不是文字「無」。
html代碼通過python 這是在不同的文件中，注意。
import webbrowser
import os
import re
print ""
#ready html tags -> use following code
#print("Content-Type: text/HTML")
# Styles and scripting for the page
main_page_head = '''
<head>
<meta charset="utf-8">
<title>Fresh Tomatoes!</title>
<!-- Bootstrap 3 -->
<link rel="stylesheet" href="https://netdna.bootstrapcdn.com/bootstrap/3.1.0/css/bootstrap.min.css">
<link rel="stylesheet" href="https://netdna.bootstrapcdn.com/bootstrap/3.1.0/css/bootstrap-theme.min.css">
<script src="http://code.jquery.com/jquery-1.10.1.min.js"></script>
<script src="https://netdna.bootstrapcdn.com/bootstrap/3.1.0/js/bootstrap.min.js"></script>
<style type="text/css" media="screen">
body {
padding-top: 80px;
background-color: #eee;
}
#trailer .modal-dialog {
margin-top: 200px;
width: 640px;
height: 480px;
}
.hanging-close {
position: absolute;
top: -12px;
right: -12px;
z-index: 9001;
}
#trailer-video {
width: 100%;
height: 100%;
}
.movie-tile {
margin-bottom: 20px;
padding-top: 20px;
}
.movie-tile:hover {
background-color: #d1d1d1;
cursor: pointer;
}
.scale-media {
padding-bottom: 56.25%;
position: relative;
}
.scale-media iframe {
border: none;
height: 100%;
position: absolute;
width: 100%;
left: 0;
top: 0;
background-color: white;
}
</style>
<script type="text/javascript" charset="utf-8">
// Pause the video when the modal is closed
$(document).on('click', '.hanging-close, .modal-backdrop, .modal', function (event) {
// Remove the src so the player itself gets removed, as this is the only
// reliable way to ensure the video stops playing in IE
$("#trailer-video-container").empty();
});
// Start playing the video whenever the trailer modal is opened
$(document).on('click', '.movie-tile', function (event) {
var trailerYouTubeId = $(this).attr('data-trailer-youtube-id')
var sourceUrl = 'http://www.youtube.com/embed/' + trailerYouTubeId + '?autoplay=1&html5=1';
$("#trailer-video-container").empty().append($("<iframe></iframe>", {
'id': 'trailer-video',
'type': 'text-html',
'src': sourceUrl,
'frameborder': 0
}));
});
// Animate in the movies when the page loads
$(document).ready(function() {
$('.movie-tile').hide().first().show("fast", function showNext() {
$(this).next("div").show("fast", showNext);
});
});
</script>
</head>
'''
# The main page layout and title bar
main_page_content = '''
<!DOCTYPE html>
<html lang="en">
<body>
<!-- Trailer Video Modal -->
<div class="modal" id="trailer">
<div class="modal-dialog">
<div class="modal-content">
<a href="#" class="hanging-close" data-dismiss="modal" aria-hidden="true">
<img src=""/>
</a>
<div class="scale-media" id="trailer-video-container">
</div>
</div>
</div>
</div>
<!-- Main Page Content -->
<div class="container">
<div class="navbar navbar-inverse navbar-fixed-top" role="navigation">
<div class="container">
<div class="navbar-header">
<a class="navbar-brand">Find your Favourite Movies</a>
</div>
</div>
</div>
</div>
<div class="container">
{movie_tiles}
</div>
<footer style='text-align: center;'><em>A Udacity project</em></footer>
</body>
</html>
'''
# A single movie entry html template
movie_tile_content = '''
<div class="col-md-6 col-lg-4 movie-tile text-center" data-trailer-youtube-id="{trailer_youtube_id}" data-toggle="modal" data-target="#trailer">
<img src="{poster_image_url}" width="220" height="342">
<h2>{movie_title}</h2>
alt="" title="hover text"<p>{movie_storyline}<p>
<p>{duration_time} {number_of_seasons}</p>
<p>{tv_station}</p>
</div>
'''
def create_movie_tiles_content(movies):
# The HTML content for this section of the page
content = ''
for movie in movies:
# Extract the youtube ID from the url
youtube_id_match = re.search(r'(?<=v=)[^&#]+', movie.trailer_youtube_url)
youtube_id_match = youtube_id_match or re.search(r'(?<=be/)[^&#]+', movie.trailer_youtube_url)
trailer_youtube_id = youtube_id_match.group(0) if youtube_id_match else None
# Append the tile for the movie with its content filled in
content += movie_tile_content.format(
movie_title=movie.title,
poster_image_url=movie.poster_image_url,
trailer_youtube_id=trailer_youtube_id,
movie_storyline=movie.storyline,
duration_time=movie.duration,
number_of_seasons=movie.seasons,
tv_station=movie.station
)
return content
def open_movies_page(movies):
# Create or overwrite the output file
output_file = open('fresh_tomatoes.html', 'w')
# Replace the placeholder for the movie tiles with the actual dynamically generated content
rendered_content = main_page_content.format(movie_tiles=create_movie_tiles_content(movies))
# Output the file
output_file.write(main_page_head + rendered_content)
output_file.close()
# open the output file in the browser
url = os.path.abspath(output_file.name)
webbrowser.open('file://' + url, new=2) # open in a new tab, if possible
請包括您的HTML文件的相關部分。 – Soviut
當您未指定給定參數時，您正在通過「無」作爲默認值。只需使用類似''''的東西來刪除默認的'None'邏輯，或者更好的是，在沒有指定參數的情況下運行一個條件，當*指定*時只輸出內容。 –