const fs = require('fs')
const mvdir = require('mvdir');
// //公共文件库地址
let sourcePath = './../store';
// //你需要copy到的位置
let destPath = './src/store';
fs.exists(destPath, function(exists) {
console.log('车很稳')
if(!exists){
console.log('我去复制公共文件了')
mvdir(sourcePath, destPath, { copy: true });
}else{
console.log('公共文件已在,不慌')
};
});