importtime# 创建一个大型的包含 Python 对象的数组large_data=np.array([i+0.5foriinrange(1000000)],dtype=object)# 测试 Python 代码的性能start_time=time.time()result=sum(large_data)print(f"Python 代码总和:{result}, 耗时:{time.time()
Syntax error in textmermaid version 11.4.1 2.19.1 BLAS与LAPACK简介 2.19.1.1 什么是BLAS和LAPACK BLAS(Basic Linear Algebra Subprograms)是一组低级别的线性代数操作的优化库,包括向量、矩阵的加法、乘法等基本操作。LAPACK(Linear Algebra Package)是一组高级别的线性代数操作的优化库,包括矩阵分解、求解线性方程...
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代码中的场景如下：准备写个备份数据的脚本,虽然linux下有zip等软件,但是python有自带zipfile类库,实现...
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3. Programiz Programiz 提供了免费的在线 Python 编译器,同时还有专业版服务,年费为15美元。除了在线编程环境,它还支持在 iOS 和 Android 设备上使用,方便学习者在移动设备上学习 Python。 4. Paiza.io Paiza 是一个支持多种语言的在线 IDE,其中 Python 功能同样强大。尽管某些功能仍处于 Beta 版本 ...
Syntax error in textmermaid version 11.4.1 2.16.1 recarray 基本特性 2.16.1.1 什么是recarray recarray是 NumPy 中的一种特殊数组类型,它允许用户像访问对象属性一样访问数组中的字段。这种数据类型在处理结构化数据时非常有用,特别是在需要频繁访问多个字段的情况下。
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