python程序只能使用源代码进行运行吗-python在运行时更改源代码

Tyson

最基本的方法是使用Pickle模块保存数据并将其加载到磁盘：

下面是我如何在一个简单的程序中使用它try:

import cPickle as pickle

except ImportError:

import pickle

class MyClass(object):

def __init__(self, file_name):

self.array = []

self.file_name = file_name

self.load_data()

def add_element(self, element):

self.array.append(element)

self.save_data()

def load_data(self):

try:

with open(self.file_name, "r") as f:

self.array = pickle.load(f)

except IOError:

pass

def save_data(self):

with open(self.file_name, "w") as f:

pickle.dump(self.array, f)

def main():

FILE_NAME = "test.pkl"

a = MyClass(FILE_NAME)

print "elements in array are", a.array

for i in range(5):

a.add_element(i)

if __name__ == "__main__":

main()

赞踩评论- 7月29日 14:46