python文件处理

原创于 2023-07-23 23:11:56 发布 · 95 阅读

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#python #开发语言

该代码示例展示了使用Python进行文件读写操作，包括清理文件中的特定字符、生成随机数列表并写入文件，然后读取数据进行可视化。主要涉及numpy生成随机数和matplotlib进行数据绘图。

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interface.py

# -*- coding: utf-8 -*-
"""
Created on Sat Jul 22 20:43:49 2023

@author: zhu_n
"""
def rewritefile(file_path):
    file = open(file_path, 'a+')
    file.seek(0, 0)
    fo = file.readline()
    fo = fo.replace('[', '')
    fo = fo.replace(']', '\n')
    file.close()
    file = open('test.txt', 'w')
    file.write(fo)
    file.close()

# -*- coding: utf-8 -*-
"""
Created on Sat Jul 22 13:03:20 2023

@author: zhu_n
"""
import numpy as np
import matplotlib.pyplot as plt
from  interface import *

file = open('test.txt', 'w')
for i in range(10):
    data = np.full((50000), np.random.random()*32767)
    datalist = list(data)
    datastr = str(datalist)
    file.write(datastr)
file.close()

rewritefile('test.txt')


file = open('test.txt', 'r')
data_out = list()
while True:
    fo = file.readline()
    if len(fo) == 0:
        break
    list_fo = fo.split(',')
    map_data = list(map(float, list_fo))
    del map_data[-1]
    data_out.extend(map_data)

print(len(data_out))
t = list(range(len(data_out)))
plt.plot(t, data_out)
plt.show()
file.close()