1、导出
let num = 10;
function sum(a,b){
return a+b
}
class Animal{
constructor(){
this.age = 10
}
}
exports.num = num
exports.sum = sum
exports.Animal = Animal
或者
module.exports = {
num,
sum,
Animal
}
导入
const m1 = require('./modules/m1')
console.log(m1)
console.log(m1.sum(20,6))
//拿到对象
const obj = new m1.Animal
console.log(obj.age)
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