// 定义常量
export const variantName = '哈哈哈';
export const Float = 3.1415926;
export const char = '61515';
引用常量
//我是模块二
import * as variantName from './模块一'
// * 代表 引入所有的 变量
// as 代表 别名
console.log(variantName.variantName) //哈哈哈
console.log(variantName.Float) //3.1415926
console.log(variantName.char) //'61515'
//我是 模块三
import {variantName,Float } as variantName from './模块一'
console.log(variantName.variantName) //哈哈哈
console.log(variantName.Float) //3.1415926
//我是模块四(只用一个)
import variantName as variantName from './模块一'
console.log(variantName.variantName) //哈哈哈