模块无法正常工作

Question

我有两页：

blockchain.js：     函数Blockchain（）{         this.chain = [];         this.newTransactions = [];     }     Blockchain.prototype.createNewBlock = function（nonce，previousHash，hash）{         const newBlock = {             事务：this.newTransactions，             随机数：随机数，             哈希：哈希，             previousHash：PreviousHash         };         this.newTransactions = [];         this.chain.push（newBlock）;

    return newBlock ;
}
module.exports = Blockchain;

test.js：

const Blockchain = require('./blockchain') ;
const bitcoin = new Blockchain() ;

bitcoin.createNewBlock(23833,'asjakdja' , 'asdasdasdadasd') ;
console.log(bitcoin);

当我使用node test.js时，会产生以下错误：

Error: Cannot find module 'E:\wamp\www\blockchain\test'
  at Function.Module._resolveFilename (module.js:527:15)
  at Function.Module._load (module.js:453:25)
  at Function.Module.runMain (module.js:665:10)
  at startup (bootstrap_node.js:201:16)
  at bootstrap_node.js:626:3

我该如何解决？