前端表单序列化为json串，以及构造json数组、json串

var parm={
username:"zhangsan",
age:24,
email:"352400260@qq.com"
};
console.log(JSON.stringify(parm));var person = new Object();
person.username = "lisi";
person.age = "34";
person.email = "1350812980@qq.com";
console.log(JSON.stringify(person));

(function($){
        $.fn.serializeJson=function(){
            var serializeObj={};
            var array=this.serializeArray();
            $(array).each(function(){
                if(serializeObj[this.name]){
                    if($.isArray(serializeObj[this.name])){
                        serializeObj[this.name].push(this.value);
                    }else{
                        serializeObj[this.name]=[serializeObj[this.name],this.value];
                    }
                }else{
                    serializeObj[this.name]=this.value;
                }
            });
            return serializeObj;
        };
    })(jQuery);