code: function(_bid){
          var _batch = _xcache[_bid];
          if (!_batch) return;
          _batch.u = _batch.u.replace(/(\?|$)/,(
                     _batch.m.callCount>1
                     ?'Multiple.'+_batch.m.callCount
                     :_batch.m['c0-scriptName']+'.'+
                      _batch.m['c0-methodName'])+'.dwr$1');
          var _option = _batch.r,
              _script = !!_option.script,
              _ispost = _option.method=='POST';
          delete _batch.r;
          delete _option.script;
          _option.method = _option.method.toUpperCase();
          _option.onerror = __onErrorWithReq._$bind(null,_bid);
          if (_script||!_ispost){
              _batch.u += (_batch.u.indexOf('?')>=0?'&':'?')
                          +__doSerializeSendData(_batch.m,'&');
          }
          if (_script){
              _j1._$loadScript(_batch.u,_option);
          }else{
              _option.onload = __onLoadWithXDR._$bind(null,_bid);
              _option.data = _ispost?__doSerializeSendData(_batch.m):null;
              _j0._$request(_batch.u,_option);
          }
      }
docs: /*
  发送请求
  @param  {String} _bid 请求标识
  @return {Void}