Rust - 關係運算符

關係運算符用來測試或定義兩個實體之間的關係型別。關係運算符用來比較兩個或更多個值。關係運算符會返回一個布林值 - 真或假。

假設 A 的值為 10，B 的值為 20。

示例

fn main() {
   let A:i32 = 10;
   let B:i32 = 20;

   println!("Value of A:{} ",A);
   println!("Value of B : {} ",B);

   let mut res = A>B ;
   println!("A greater than B: {} ",res);

   res = A<B ;
   println!("A lesser than B: {} ",res) ;

   res = A>=B ;
   println!("A greater than or equal to B: {} ",res);

   res = A<=B;
   println!("A lesser than or equal to B: {}",res) ;

   res = A==B ;
   println!("A is equal to B: {}",res) ;

   res = A!=B ;
   println!("A is not equal to B: {} ",res);
}

輸出

Value of A:10
Value of B : 20
A greater than B: false
A lesser than B: true
A greater than or equal to B: false
A lesser than or equal to B: true
A is equal to B: false
A is not equal to B: true