可以这样写 struct :
enum Number {
One = 1,
Two = 2,
Three = 3,
Four = 4,
}
但目的是什么?我找不到任何方法来获取枚举变量的值.
可以这样写 struct :
enum Number {
One = 1,
Two = 2,
Three = 3,
Four = 4,
}
但目的是什么?我找不到任何方法来获取枚举变量的值.
通过将枚举变量强制转换为整数类型来获得该值:
enum Thing {
A = 1,
B = 2,
}
fn main() {
println!("{}", Thing::A as u8);
println!("{}", Thing::B as u8);
}