Python file operations

1. Open the Mode list

#Open the Mode list:#W opens in write mode,#a opens in Append mode (starting with EOF and creating a new file if necessary)#r+ Open in read-write mode#w+ Open in read/write mode (see W)#A + opens in read/write mode (see a)#RB opens in binary read mode#WB opens in binary write mode (see W)#AB opens in binary append mode (see a)#rb+ opens in binary read/write mode (see r+)#wb+ opens in binary read/write mode (see w+)#ab+ opens in binary read/write mode (see A +)f = open ('/users/kamil/pycharmprojects/s20160115_1/day1/if_el/test.log','w+') forIinchRange (10): F.write ('liukun\n') F.close ()

2. File Read

f = open (' Tpm.txt ') # Read mode reads S = F.read () print (S, ' \n\n\n ') print (F.tell ()) #上面读取完后指针移动到最后, move the file pointer through seek to the file header F.seek (0) # Use ReadLine to read one row at a time (True): Line    = F.readline ()    print (lines)    if (len) = = 0): Break        F.close ()

Python file operations