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  • python(保存后台数据)

    pickle模块
    例子
     1 import pickle
     2 
     3 obj = 123, "abcdef", ["ac", 123], {"key": "value", "key1": "value1"}
     4 print(obj)
     5 
     6 # 序列化到文件
     7 with open(r"data1.pk", "wb") as f:
     8     pickle.dump(obj, f)
     9 
    10 with open(r"data1.pk", "rb") as f:
    11     print(pickle.load(f))# 输出:(123, 'abcdef', ['ac', 123], {'key': 'value', 'key1': 'value1'})
    12 
    13 # 序列化到内存(字符串格式保存),然后对象可以以任何方式处理如通过网络传输
    14 obj1 = pickle.dumps(obj)
    15 print(type(obj1))# 输出<class 'bytes'>
    16 print(obj1)# 输出:python专用的存储格式 b'x80x03(K{Xx06x00x00x00abcdefqx00]qx01(Xx02x00x00x00acqx02K{e}qx03(Xx03x00x00x00keyqx04Xx05x00x00x00valueqx05Xx04x00x00x00key1qx06Xx06x00x00x00value1qx07utqx08.'
    17 
    18 obj2 = pickle.loads(obj1)
    19 print(type(obj2))# 输出:<class 'tuple'>
    20 print(obj2) # 输出:(123, 'abcdef', ['ac', 123], {'key': 'value', 'key1': 'value1'})
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  • 原文地址:https://www.cnblogs.com/2018-1025/p/12169142.html
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