import pickle
data = {'k1':123, 'k2':888}
#dumps可以将数据类型转换成只有python才认识的字符串
p_str = pickle.dumps(data)
print p_str


输出结果：

(dp0
S'k2'
p1
I888
sS'k1'
p2
I123
s.

import pickle
data = {'k1':123, 'k2':888}
#打开文件，然后将data写入
with open('data.pkl', 'wb') as f:
 pickle.dump(data, f)
#同样读取的时候也需要打开文件
with open('data.pkl', 'rb') as f:
 data_1 = pickle.load(f)
print data_1


结果：

{'k2': 888, 'k1': 123}

文件中显示的内容与上面一致

import json
data = {'k1':123, 'k2':888}
p_str = json.dumps(data)
print p_str, type(p_str)


结果:

{"k2": 123, "k1": 888} <type 'str'>

import json
data = {'k1':123, 'k2':123}
 
#打开文件，然后将data写入
with open('data.pkl', 'w') as f:
 json.dump(data, f)
 
#同样读取的时候也需要打开文件
with open('data.pkl', 'r') as f:
 data_1 = json.load(f)
print(data_1, type(data_1))


结果：

({u'k2': 123, u'k1': 123}, <type 'dict'>)