给object数组进行排序（排序条件是每个元素对象的属性个数）

var book={
page:400
}
var car={
color:"red",
door:"four"
}
var person={
name:"dpd",
age:26,
height:175
}
var oArray=[car,person,book];

function sortObjectArray(arrays){
arrays.sort(compareAsc);
}
//升序
function compareAsc(obj1,obj2){
return  getPropertyLength(obj1)-getPropertyLength(obj2);
}
function getPropertyLength(obj){
var len=0,property;
for(property in obj){
if (obj.hasOwnProperty(property)&&typeof obj[property]!=='function') {
len++;
};
}
return len;
}