qs.stringify() 和JSON.stringify()的区别

var a = {name:'hehe',age:10};
qs.stringify(a)     // 'name=hehe&age=10'
JSON.stringify(a)   // '{"name":"hehe","age":10}'

var a = '{name:"hehe",age:10}';
qs.parse(a)         //{ '{name:"hehe",age:10}': '' }

JSON.parse(c)       //{ name: 'hehe', age: '10' }

var a=[{a:123},{a:345}]
qs.stringify(a)  //'0[a]=123&1[a]=345'