node-MysqL看起来很简单：
var MysqL = require('MysqL');
var connection = MysqL.createConnection({
host : 'example.org',
user : 'bob',
password : 'secret',
});
connection.connect(function(err) {
// connected! (unless `err` is set)
});
查询：
var post = {id: 1, title: 'Hello MysqL'};
var query = connection.query('INSERT INTO posts SET ?', post, function(err, result) {
// Neat!
});
console.log(query.sql); // INSERT INTO posts SET `id` = 1, `title` = 'Hello MysqL'
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