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我在Python中存儲一個類的列表，但是當我稍後嘗試訪問它時，它是空的。這裏是相關的代碼和輸出。類存儲Python中的列表
在compiler.py
# globals
verbose = True
current_context = ""
def compile(tokens):
global verbose, current_context
if verbose: print("verbose output enabled.")
# first we want to find all the sections.
firstpass_token_id = 0
gathered_tokens = []
gather_tokens = False
for t in tokens:
if gather_tokens:
gathered_tokens.append(t)
if t == SECTION:
current_context = extract_section_name(tokens[firstpass_token_id + 1])
gather_tokens = True
if verbose: print("gathering tokens for section", current_context)
if t == END:
add_section(current_context, gathered_tokens)
current_context = ""
gathered_tokens.clear()
gather_tokens = False
firstpass_token_id += 1
# then we want to call the main section
call_section("main")
def call_section(name):
global verbose, current_context
if verbose: print("calling section", name)
skip_until_next_end_token = False
tokens = get_tokens(name)
print(len(tokens))
在sections.py
sections = []
section_id = 0
class Section:
def __init__(self, id, name, tokens):
self.id = id
self.name = name
print("storing the following tokens in", name)
print(tokens)
self.tokens = tokens
def get_tokens(self):
print("retrieving the following tokens from", self.name)
print(self.tokens)
return self.tokens
def add_section(name, tokens):
global sections, section_id
sections.append(Section(section_id, name, tokens))
section_id += 1
def get_tokens(name):
global sections
for s in sections:
if s.name == name:
return s.get_tokens()
輸出
verbose output enabled.
gathering tokens for section foo
storing the following tokens in foo
['foo()', 'var', 'lmao', '=', '2', 'end']
gathering tokens for section main
storing the following tokens in main
['main()', 'var', 'i', '=', '0', 'i', '=', '5', 'var', 'name', '=', '"Douglas"', 'var', 'sentence', '=', '"This is a sentence."', 'foo()', 'end']
calling section main
retrieving the following tokens from main
[]
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注意，這些都是不完整的文件，讓我知道你是否需要看到更多的代碼。我確信這是一件愚蠢的事情，我還沒有和python合作過幾個月。謝謝。