nodejs 使用crypto实现sha256\md5加密

 var crypto = require('crypto');

 var hash = crypto.createHash('sha256');// sha256或者md5

 hash.update('123456');

 var res = hash.digest('hex');

 console.log(res);// 8d969eef6ecad3c29a3a629280e686cf0c3f5d5a86aff3ca12020c923adc6c92

参考地址戳 这儿~