python实现在内存中读写str和二进制数据代码

我就废话不多说了，还是直接看代码吧！

# 利用python在内存中读写str和二进制数据from io import StringIOfrom io import BytesIO f = StringIO()print(f.write(’hello ’)) # 6print(f.write(’world!’)) # 6print(f.getvalue()) # hello world! f = BytesIO()print(f.write(’中文’.encode(’utf-8’))) # 6print(f.getvalue()) # b’xe4xb8xadxe6x96x87’

补充知识：python二进制转到float

看代码吧！

# -*- coding: utf-8 -*-'''Created on Tue Dec 3 14:38:04 2019@author: xuguanghui''' import numpy as np mlplib_label = r'C:UsersxuguanghuiDesktop106421_mlplib.lab'train_label = r'C:UsersxuguanghuiDesktop106421_train.lab'mlplib_txt = r'C:UsersxuguanghuiDesktop106421_mlplib.txt'train_txt = r'C:UsersxuguanghuiDesktop106421_train.txt' mlplib_lab = np.fromfile(mlplib_label, dtype=np.int32).reshape(-1, 892)train_lab = np.fromfile(train_label, dtype=np.float32).reshape(-1, 892) np.savetxt(mlplib_txt, mlplib_lab, fmt=’%d’)np.savetxt(train_txt, train_lab, fmt=’%d’)

以上这篇python实现在内存中读写str和二进制数据代码就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持好吧啦网。