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python之json&pickle

print 寫入文件 com 轉換 col 技術 python nbsp pickle模塊

用於序列化的兩個模塊:

json:用於字符串和python數類型間進行轉換

oickle:用於python特有的類型和python的數據類型間進行轉換

json、pickle模塊提供四個功能:dumps、dump、loads、load

技術分享圖片

使用json&pickle將轉化成字符串寫入文件

 1 import json
 2 import pickle
 3 
 4 def sayhi(name):
 5     print("hello,", name)
 6 
 7 info = {
 8     "name":"guoxf",
 9     "age":"18",
10     "sex
":"nan", 11 "func":sayhi 12 } 13 14 info1 = { 15 "name":"guoxf", 16 "age":"18", 17 "sex":"nan", 18 # "func":sayhi 19 } 20 21 f = open("a.txt", "wb") 22 # json.dump(info1) # 兩者完全相等 json.dumps(info1) 23 pickle.dump(info, f) # 兩者完全相等 f.write(pickle.dumps(info)) 24 f.close()

使用json&pickle將文件中的字符串轉化成字典讀取

 1 import json
 2 import pickle
 3 
 4 def sayhi(name):
 5     print("hello,", name)
 6 
 7 f = open("a.txt", "rb")
 8 # data = json.loads(f.read())
 9 # data = pickle.loads(f.read())
10 data = pickle.load(f)
11 print(data)
12 
13 f.close()
14 
15 print(data["func"]("
gxf"))

python之json&pickle