The analysis Python uses the Pickle module to complete the function of the enhancement and deletion check.

This article mainly introduced the Python uses the Pickle module realizes "the Adding and deleting" the simple function, has the certain reference value, the interest small partner may consult.

The role of Pickle:

1:pickle.dump (dict,file) converted the dictionary into binary file.

2:pickle.load (file) to convert the binary contents of files into a dictionary

Import pickle# def adds ():   users = {"name": "Yangbin", "Age": $, "sex": "Male"}   with open ("Red.txt", "WB") as F:
  pickle.dump (Users, f)  dic = {} with   open ("Red.txt") as SD:     dic = pickle.load (SD)   print dic# Delete def delet ES ():  dic = {} with   open ("Red.txt") as f:     dic = Pickle.load (f)  dic.pop ("Sex") with  open ("Red.txt "WB") as FF:     pickle.dump (DIC, ff)   print dic # change def changes ():   dic = {} with  open ("Red.txt") as f:< C16/>dic = Pickle.load (f)   dic["age"] =-with   open ("Red.txt", "WB") as F:     Pickle.dump (DIC, F)   Print dic# def finds ():   dic = {} with  open ("Red.txt") as f:     dic = Pickle.load (f) to   k,v in Dic.item S ():    print "%s--->%s"% (k, v) adds () deletes () changes () finds ()

Operation Result:

root@python3:/python/python2/linshi# python 01.py {' age ': $, ' name ': ' Yangbin ', ' sex ': ' Male '} {' Age ': ' ' name ': ' Yangbin '} {' age ': ' Name ': ' Yangbin '}age---> 28name---> Yangbinroot@python3:/python /python2/linshi#