python之json&pickle

用于序列化的两个模块：

json：用于字符串和python数类型间进行转换

oickle：用于python特有的类型和python的数据类型间进行转换

json、pickle模块提供四个功能：dumps、dump、loads、load

使用json&pickle将转化成字符串写入文件

 import json
 import pickle

 def sayhi(name):
     print("hello,", name)

 info = {
     "name":"guoxf",
     "age":"",
     "sex":"nan",
     "func":sayhi
 }

 info1 = {
     "name":"guoxf",
     "age":"",
     "sex":"nan",
     # "func":sayhi
 }

 f = open("a.txt", "wb")
 # json.dump(info1)    # 两者完全相等 json.dumps(info1)
 pickle.dump(info, f)    # 两者完全相等 f.write(pickle.dumps(info))
 f.close()

使用json&pickle将文件中的字符串转化成字典读取

 import json
 import pickle

 def sayhi(name):
     print("hello,", name)

 f = open("a.txt", "rb")
 # data = json.loads(f.read())
 # data = pickle.loads(f.read())
 data = pickle.load(f)
 print(data)

 f.close()

 print(data["func"]("gxf"))