#Open the file windows default encoding gbk so you need to decode it with jbk
f=open( ' hello.txt ' , encoding= ' utf8 ' ) # use gbk decoding operation
data=f.read() # read the file content
print (data ) #Print the file content
f.close() #Close the file
# f=open('hello.txt','r',encoding='utf-8')
# # data=f.read()#Read the file content
# # print(data)
# print(f.readable( ))#Display whether it is readable or not, if it is r, display true
# print(f.readline())# Read the content of a line of open files
# f.close()
# r read w write r append
# w no matter whether there is a document or not Clear the contents of the file and create a new document
# f=open('hello.txt','w',encoding='utf-8')
# f.write('123456\n')#The contents of the original file will be cleared directly Use this string instead of
# #Append operation a
# f=open('hello.txt','a',encoding='utf-8')
# f.write('write to the end of the file')# can be achieved in the original Append new content to the file
# r+ readable and writable
# f=open('hello.txt','r+',encoding='utf-8')
#data=f.read()
# print(data)
# f.write('Who are you?\n')
# data=f.read()
# print(data)
f.close()#The file must be closed or it will not work
with open( ' hello.txt ' , ' w ' ,encoding= ' gbk ' ) as sf.open( ' cat.txt ' , ' w ' ,encoding= ' gbk ' ) as f:#with no need to close the fileclose
f.write('llsd\n')