JSON简介

数据在名称/值对中： 

 "firstName":"John"

数据由逗号分隔： 

 "firstName":"John","lastName":"Doe"

花括号保存对象（Object）： 

 {"firstName":"John","lastName":"Doe"}

方括号保存数组（Array）： 

 {"employees":[{"firstName":"John","lastName":"Doe"},{"Anna":"John","lastName":"Smith"},{"firstName":"Peter","lastName":"Jones"}]