js怎么读取本地的 json数据

JavaScript018

js怎么读取本地的 json数据,第1张

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)

看这样一段函数定义的代码就明白了function json_to_format_string(obj,deep){ var html = "" var blank_string = "" for (var i = 0i <deepi++) { blank_string += " " } for(var name in obj){ if (typeof(obj[name])=="object") { html += blank_string + name +": "+ "

" html += json_to_format_string(obj[name],deep+1) }else{ html += blank_string + name +": "+ obj[name]+"

" } } return html}