// 基本数学运算 const a = 10; const b = 3; console.log(`加法: ${a} + ${b} = ${a + b}`); console.log(`减法: ${a} - ${b} = ${a - b}`); console.log(`乘法: ${a} * ${b} = ${a * b}`); console.log(`除法: ${a} / ${b} = ${