生锈的领域是从来没有读删除的警告
//Place #[allow(dead_code)] above the line that is giving the warning
#[allow(dead_code)]
struct GivingWarning;
rust字段永远不会读取删除警告
//Place #[allow(dead_code)] above the line that is giving the warning
#[allow(dead_code)]
struct GivingWarning;