js读取并解析JSON类型数据的方法_javascript技巧

var json = {
  contry:{
  area:{
   man:"12万",
   women:"10万"
  }
  }
 };
//方式一：使用eval解析
 var obj = eval(json);
 alert(obj.constructor);
 alert(obj.contry.area.women);
 //方式二：使用Funtion函数
 var strJSON = "{name:'json name'}";//得到的JSON
 var obj = new Function("return" + strJSON)();//转换后的JSON对象
 alert(obj.name);//json name
 alert(obj.constructor);
//复杂一点的json数组数据的解析
 var value1 = [ 
  {"c01":"1","c02":"2","c03":"3","c04":"4","c05":"5","c06":"6","c07":"7","c08":"8","c09":"9"},
   {"c01":"2","c02":"4","c03":"5","c04":"2","c05":"8","c06":"11","c07":"21","c08":"1","c09":"12"},
  {"c01":"5","c02":"1","c03":"4","c04":"11","c05":"9","c06":"8","c07":"1","c08":"8","c09":"2"}
   ]; 
 var obj1 = eval(value1);
 alert(obj1[0].c01);
 //复杂一点的json的另一种形式
 var value2 = {
   "list":[
   {"password":"1230","username":"coolcooldool"},
   {"password":"thisis2","username":"okokok"}
   ],
   "array":[
   {"password":"1230","username":"coolcooldool"},
   {"password":"thisis2","username":"okokok"}
   ]
   };
 var obj2 = eval(value2);
 alert(obj2.list[0].password);
}