See also: Why does Windows have a limit on environment variables at all?

根据Windows应用开发文档所述：“用户定义的环境变量的最大长度为32767字符。”

但我创建了一个Rust包来测试这个限制，结果却出乎意料——我居然能创建一个远超过32767字符的环境变量。

Cargo.toml #

[package]
name = "big-variable-test"
edition = "2021"

[[bin]]
name = "big-variable-creator"
path = "src/big_variable_creator.rs"

[[bin]]
name = "big-variable-size-checker"
path = "src/big_variable_size_checker.rs"

src\big_variable_creator.rs #

// This is the largest number that I’ve gotte...

备注：内容来源于stack exchange，提问作者Ginger Jesus