js将json格式的对象拼接成复杂的url参数方法

var parseParam=function(param, key){ 

  varparamStr=""; 

  if(paraminstanceof String||param instanceof Number||param instanceof Boolean){ 

    paramStr+="&"+key+"="+encodeURIComponent(param); 

  }else{ 

    $.each(param,function(i){ 

      vark=key==null?i:key+(paraminstanceof Array?"["+i+"]":"."+i); 

      paramStr+='&'+parseParam(this, k); 

    }); 

  } 

  returnparamStr.substr(1); 

}; 

//调用： 

var obj={name:'tom','class':{className:'class1'},classMates:[{name:'lily'}]};

parseParam(obj); 

结果："name=tom&class.className=class1&classMates[0].name=lily" 

parseParam(obj,'stu');

结果："stu.name=tom&stu.class.className=class1&stu.classMates[0].name=lily"

将string 转换成json对象

var   define   =   "{name: 'Michael ',email: '17bity@gmail.com '} ";

var   data   =   eval( '( '   +   define   +   ') ');

alert(data.name);