V2EX zhouheyang0919
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zhouheyang0919

zhouheyang0919

V2EX 第 168576 号会员,加入于 2016-04-16 19:59:09 +08:00
zhouheyang0919 最近回复了
2018-06-18 00:50:13 +08:00
回复了 mimzy 创建的主题 Python id(1) 和 id(2) 返回的内存地址为什么相差 32?
@wwqgtxx

>>> id(100000000000000000000000)
139793637212488
>>> id(100000000000000000000000)
139793637212448
>>> id(100000000000000000000000)
139793637212408
>>> id(100000000000000000000000)
139793637212368

所以呢
2018-06-18 00:23:54 +08:00
回复了 mimzy 创建的主题 Python id(1) 和 id(2) 返回的内存地址为什么相差 32?
@wwqgtxx

>>> id(100000000000000000000003)-id(100000000000000000000000)
-40
>>> id(100000000000000000000003)-id(100000000000000000000000)
-120
>>> id(100000000000000000000003)-id(100000000000000000000000)
-40
>>> id(100000000000000000000003)-id(100000000000000000000000)
-40
>>> id(100000000000000000000003)-id(100000000000000000000000)
-40
>>> id(100000000000000000000003)-id(100000000000000000000000)
-40
>>> id(100000000000000000000003)-id(100000000000000000000000)
-40
>>> id(100000000000000000000003)-id(100000000000000000000000)
-40
>>> id(100000000000000000000003)-id(100000000000000000000000)
-40
>>> id(100000000000000000000003)-id(100000000000000000000000)
-80

-40 似乎是内存分配器正好分配了连续的内存空间而产生的巧合。
rust
2018-01-01 13:31:38 +08:00
回复了 dtysky 创建的主题 Javascript 编译 TypeScript、C++和 Rust 到 WebAssembly
现在 Rust 的 nightly 版本有一个 target: wasm32-unknown-unknown 可以直接编译到 WebAssembly,不需要手动编译到 LLVM bitcode 或借助 emscripten.
https://github.com/losfair

申请加入 node 组
2017-08-28 20:05:05 +08:00
回复了 xoxo419 创建的主题 程序员 做程序那么久了, 你感觉有自己得意之作是哪个?
用 Rust 写的 Web 框架,用于集成到其他语言的服务端程序里。
是 Node.js & Python 上最快 ( QPS 提升至少 100% ) 的 Web 服务端实现。

Core: https://github.com/losfair/IceCore

Node.js: https://github.com/losfair/ice-node
Python: https://github.com/losfair/pyice_base
.NET Core: https://github.com/losfair/SharpIce
Go: (Still under early development)
2017-08-24 08:29:56 +08:00
回复了 guyeuro 创建的主题 问与答 Java 的 lambda 这么耗时,大家平时用吗?
@guyeuro 即使 JVM 没有做更多优化,lambda 带来的开销也只是 function call overhead,1-2 ns / op 而已。
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