#try:# directory=sys.argv[1]# Set the variable directory to be the argument supplied by user.# except IndexError:# sys.exit("Must provide an argument.")classdirectorydefget_folder_size(folder_path):dir_size=0#
这就意味着在创建变量时会在内存中开辟一个空间。基于变量的数据类型,解释器会分配指定内存,并决定什么数据可以被存储在内存中。因此,变量可以指定不同的数据类型,这些变量可以存储整数,小数或字符. 一、 变量 1.1 变量赋值 代码语言:javascript 代码运行次数:0 运行 AI代码解释 # Python 中的变量赋值不需要类型声明...
forurlinurls: content =download(url)# download 是一个耗时的网络I/O操作 process(content) # 伪代码示例:并发下载多个网页 defconcurrent_downloader(urls): # 启动多个下载任务,它们可以并发进行 tasks =[start_download_task(url)forurlinurls] fortaskintasks: content =await_task_completion(task)# 等待每...
def _get_fontname(self): font=' '.join(self.contents["font"].split(' ')[:-2]) # tkinter会将带空格的字体名称用{}括起来 if '{' in font: font = font[1:-1] return font def set_fontsize(self,index): newsize=self.FONTSIZES[index] fontname = self._get_fontname() self.contents...
The struct module provides pack() and unpack() functions for working with variable length binary record formats. The following example shows how to loop through header information in a ZIP file without using the zipfile module. Pack codes "H" and "I" represent two and four byte unsigned ...
file_size = os.path.getsize(file_path) print("File size:", file_size, "bytes") except FileNotFoundError: print("File not found.") In this example, we use thegetsize()function from theos.pathmodule to obtain the size of the file specified byfile_path. If the file is found, the ...
>>> for i in tuple:print(i) ... 1 2 3 4 5 #长度 >>> tuple = (1,2,3,4,5) >>> print(tuple.__len__()) 5 >>> print(len(tuple)) 5 #包含in >>> tuple = (1,2,3,4,5) >>> print(2 in tuple) True #拼接
') mpath = uriTmp[1:] elem = root_elem.find(mpath, namespaces) if elem is None: return file_size file_size = int(elem.text) / 1024 return file_size @ops_conn_operation def get_file_size_home(ops_conn=None, file_path='', types=0): """Return the size of a file in the ...
python condition_variable.py E-mail queue is empty. Entering wait state... E-mail queue populated. Resuming operations... Sending email to joe@example.com E-mail queue is empty. Entering wait state... 通过这个例子,我们现在了解了在 Python 中如何使用条件变量来解决生产者-消费者问题。有了这些...
struct { PyObject ob_base; Py_ssize_t ob_size; /* Number of items in variable part...