rust从0开始写项目-05-获取cpus信息

添加 Cargo.toml:

[dependencies]
num_cpus = "1.0"

use num_cpus;

pub fn cpus(){
    println!("cpus num {}",num_cpus::get());
    println!("physical cpus num {}",num_cpus::get_physical());
}

cpus num 10
physical cpus num 10

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