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// 算数运算符

let num1 = 1 + 1; // 2

let num2 = 1 - 1; // 0

let num3 = 2 * 3; // 6

let num4 = 6 / 2; // 3

let num5 = 7 % 2; // 1

let num6 = 2 ** 3; // 8

num1++ // 3

num2--; // -1

// 比较运算符

let x = 1;

let y = 2;

let bool1 = (x == y); // false

let bool2 = (x != y); // true

let bool3 = (x > y); // false

let bool4 = (x < y); // true

let bool5 = (x >= y); // flase

let bool6 = (x <= y); // true

let bool7 = (x === y); // flase

let bool8 = (x !== y); // true

// 逻辑运算符

true || true; // true

false || true; // true

true || false; // true

false || false; // false

true && true; // true

false && true; // false

true && false; // false

false && false; // false

!true; // false

!false; // true