Python Fundamentals Class 11 Notes 1. 文件操作 主题介绍: 本节课将介绍如何在Python中进行文件操作,包括文件的打开、读取、写入和关闭。 重点笔记: 使用open()函数打开文件,可以指定模式(如'r'读模式,'w'写模式,'a'追加模式)。 使用read()方法读取文件内容,readline()方法逐行读取,readlines()方法读取所有...
AI代码解释 classPerson:'''Represents a person '''population=0def__init__(self,name):# some statements and population += 1def__del__(self):# some statements and population -= 1defsayHi(self):'''grettings from person'''print'Hi My name is %s'%self.namedefhowMany(self):'''Prints ...
# complex r=1+3jprint(q,w,e,r)#12.3True(1+3j)# 内置的type()函数可以用来查询变量所指的对象类型print(type(q))#<class'int'>print(type(w))#<class'float'>print(type(e))#<class'bool'>print(type(r))#<class'complex'># 也可以采用isinstance()# isinstance 和 type的区别在于:type()不会...
Notes module __doc__ documentation string __file__ filename (missing for built-in modules) class __doc__ documentation string __module__ name of module in which this class was defined method __doc__ documentation string __name__ name with which this method was defined im_class class ob...
Notes 欢迎使用 68.69. 70.71. 用户登录72.73. 74.75. 76.77. 用户名78.79. 80.81. 82.83. 84.85. 密码86.87. </di 3.4.2 笔记模块 负责笔记的创建、编辑、删除、分类等功能。 图3 添加笔记 代码 1. # 添加笔记2.3. @app.route('/add_article', methods=...
Objects/lnotab_notes.txt for details. */void*co_zombieframe;/* for optimization only (see frameobject.c) */PyObject *co_weakreflist;/* to support weakrefs to code objects *//* Scratch space for extra data relating to the code object. ...
ExcelWriter : Class for writing DataFrame objects into excel sheets. read_excel : Read an Excel file into a pandas DataFrame. read_csv : Read a comma-separated values (csv) file into DataFrame. Notes --- For compatibility with :meth:`~DataFrame.to_csv`, to_excel serializes lists and...
"game_notes.txt","r")# open the text file in read mode# insert the texts in pdfforxinf:...
Notes: 本方法不会自动关闭文件,应在完成所有写入操作后调用close()方法。 """ def close(self): """ 关闭当前打开的文件。 Side Effects: 清理文件句柄资源,确保写入的数据被妥善保存到磁盘。 """ 3.2 使用类型提示提升文档质量 3.2.1 类型注解在Python 3.x中的应用 Python 3引入了类型提示功能,允许在...
Tip: Use blue boxes (alert-info) for tips and notes. If it’s a note, you don’t have to include the word “Note”. · 黄色警示框:警告 Example: Yellow Boxes are generally used to include additional examples or mathematical formulas. · 绿色警示框:...