判断是否是pc

  function IsPC() {
                var userAgentInfo = navigator.userAgent;
                var Agents = new Array("Android", "iPhone", "SymbianOS", "Windows Phone", "iPad", "iPod");
                var flag = false;
                for (var v = 0; v < Agents.length; v++) {
                    if (userAgentInfo.indexOf(Agents[v]) > 0) {
                        flag = true;
                        break;
                    }
                }
                return flag;
            }
              var is_pc=IsPC();