["one","two","three"]
{ "one": 1,"two": 2,"three": 3 }
{"names": ["张三","李四"] }
[ { "name": "张三"},{"name": "李四"} ]　

{ name: "张三",‘age‘: 32 }  // 属性名必须使用双引号
[32,64,128,0xFFF] // 不能使用十六进制值
{ "name": "张三","age": undefined }  // 不能使用undefined
{ "name": "张三","birthday": new Date(‘Fri,26 Aug 2011 07:13:10 GMT‘),"getName":  function() {return this.name;}  // 不能使用函数和日期对象
}