ZhangHanDong / tao-of-rust-codes

《Rust编程之道》随书源码
https://ruststudy.github.io/tao_of_rust_docs/tao_of_rust/
MIT License
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2.5.1 节,if判断不建议使用小括号 #323

Open pkubangbang opened 3 years ago

pkubangbang commented 3 years ago

页码与行数


代码错误

let big_n = if (n < 10 && n > -10) { // 小括号导致warning

Rust Playground Demo

https://play.rust-lang.org/?version=stable&mode=debug&edition=2018&gist=08e03bc15c70e2e26eeff1559bbd7672

错误信息

warning: unnecessary parentheses around `if` condition
ZhangHanDong commented 3 years ago

感谢反馈