display trait rust
use std::fmt;
struct Point {
x: i32,
y: i32,
}
impl fmt::Display for Point {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
write!(f, "({}, {})", self.x, self.y)
}
}
let origin = Point { x: 0, y: 0 };
assert_eq!(format!("The origin is: {}", origin), "The origin is: (0, 0)");Runrust trait
pub trait Summary {
fn summarize(&self) -> String;
}Copyright © 2021 Codeinu
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