<meta name="_token" content="{{ csrf_token() }}"/> 

headers: {
'X-CSRF-TOKEN': $('meta[name="_token"]').attr('content')
},

$(form[1]).submit(function(event){
    var data = $(form[1]).serializeArray();
    // console.log(data);
    $.ajax({
      type:'post',
      url:'/basic',
      data:data,
      headers: {
  'X-CSRF-TOKEN': $('meta[name="_token"]').attr('content')
},
      success:function(msg){
        if (msg) {
          $('.basicEdit').hide();
          $('.basicShow').show();
          $('.basicShow span').html(data[1].value+' | '+data[2].value+' | '+data[3].value+' | '+data[4].value+'<br>'+data[5].value+' | '+data[6].value+' | '+data[7].value);
        }
      },
    });
    // event.preventDefault();
    return false;
  });

public function basic(Request $req){
   // return $req->gender;
   $uid = Auth::user()->uid;
   // return $uid;
   // $inf = new \App\Info;
   $inf = Info::where('uid',$uid)->first();
   // return $inf;
   $inf->name = $req->name;
   $inf->gender = $req->gender;
   $inf->topDegre = $req->topDegre;
   $inf->workyear = $req->workyear;
   $inf->tel = $req->tel;
   $inf->email = $req->email;
   return $inf->save()?"ok":"fail";
  }