nodejs包 node-uuid(生成唯一id，标识单个记录)

1. 在前台引入：下载node-uuid

<script src = "uuid.js"></script>

2.in node js

npm install node-uuid

1. how to use

var uuid = require("node-uuid");

Then create some ids …

// Generate a v1 (time-based) id
uuid.v1(); // -> "6c84fb90-12c4-11e1-840d-7b25c5ee775a"

// Generate a v4 (random) id
uuid.v4(); // -> "110ec58a-a0f2-4ac4-8393-c866d813b8d1"