Express 路径请求及对应的获取路径形式

// GET /search?q=tobi+ferret  
req.query.q  
// => "tobi ferret"  

// GET /shoes?order=desc&shoe[color]=blue&shoe[type]=converse  
req.query.order  
// => "desc"  

req.query.shoe.color  
// => "blue"  

req.query.shoe.type  
// => "converse"  

// POST user[name]=tobi&user[email]=tobi@learnboost.com  
req.body.user.name  
// => "tobi"  

req.body.user.email  
// => "tobi@learnboost.com"  

// POST { "name": "tobi" }  
req.body.name  
// => "tobi" 

// GET /user/tj  
req.params.name  
// => "tj"  

// GET /file/javascripts/jquery.js  
req.params[0]  
// => "javascripts/jquery.js"  

// ?name=tobi  
req.param('name')  
// => "tobi"  

// POST name=tobi  
req.param('name')  
// => "tobi"  

// /user/tobi for /user/:name   
req.param('name')  
// => "tobi"