import shelve
db = shelve.open('persondb1')
for key in sorted(db):
print(key,'\t=>', db[key])
db['Sue Jones'].giveRaise(.10)
db.close()
以上不能修改原处的数据
但是下面能修改
import shelve
db = shelve.open('persondb1')
for key in sorted(db):
print(key,'\t=>', db[key])
sue = db['Sue Jones']
sue.giveRaise(.10)
db['Sue Jones'] = sue
db.close()