由网友(不忘初心.)分享简介：我要检测角位移+右箭头+ P的一个问题。结果我使用的角度1.2.3我没有问题，只检测右箭头+ P，但换挡时进入游戏的东西刹车问题是热的检测情况时，3键是pressed：SHIFT +右箭头键+ P 下面是一个工作的例子 plunker VAR应用= angular.module（'keyboardDemo'，[]...

我要检测角位移+右箭头+ P的一个问题。结果我使用的角度1.2.3我没有问题，只检测右箭头+ P，但换挡时进入游戏的东西刹车

问题是热的检测情况时，3键是pressed：SHIFT +右箭头键+ P

下面是一个工作的例子 plunker

  VAR应用= angular.module（'keyboardDemo'，[]）;app.controller（'MainCtrl'，函数（$范围，$超时）{    / **     * 39（右箭头）     * 80（p）的     * /    VAR地图= {39：假的，80：假};    $ scope.onKeyUp =函数（事件）{        如果（图[39]和放大器;＆放大器;图[80]）{            $ scope.data.message1 =P + RIGHT pressed！;            $超时（函数（）{               $ scope.data.message1 ='';            }，1000）;        }        如果（event.shiftKey＆安培;＆放大器;图[39]和放大器;＆放大器;图[80]）{            $ scope.data.message2 =SHIFT + P + RIGHT pressed！;            $超时（函数（）{               $ scope.data.message2 ='';            }，1000）;        }        VAR键code = getKeyboardEvent code（事件）;        如果（在地图键code）{            clearKey code（键code）;        }    };    $ scope.onKeyDown =函数（事件）{        VAR键code = getKeyboardEvent code（事件）;        如果（在地图键code）{            图[关键code] =真;        }    }    VAR getKeyboardEvent code =功能（事件）{        返回parseInt函数（（window.event event.key code：event.which））;    };    功能clearKey code（code）{        图[code] = FALSE;    }    $ scope.data = {      MESSAGE1'：''，      消息2'：''    };}）; 

解决方案

正如评论说。您code实际效果很好。在MacOS使用Chrome，当我preSSSHIFT + P +右箭头并释放键，我看到两个消息。

I have a problem to detect shift + right arrow + p in angular. I am using angular 1.2.3 I have no problem to detect only right arrow + p but when the shift comes into game something brakes

The question is hot to detect situation when 3 keys are pressed: SHIFT + RIGHT ARROW + P

Here is a working example on plunker

var app = angular.module('keyboardDemo', []);

app.controller('MainCtrl', function($scope, $timeout) {
    /**
     * 39 (right arrow)
     * 80 (p)
     */
    var map = {39: false, 80: false};

    $scope.onKeyUp = function(event){
        if (map[39] && map[80]) {
            $scope.data.message1 = "P + RIGHT pressed!";
            $timeout(function(){
               $scope.data.message1 = '';
            }, 1000);
        }

        if (event.shiftKey && map[39] && map[80]) {
            $scope.data.message2 = "SHIFT + P + RIGHT pressed!";
            $timeout(function(){
               $scope.data.message2 = '';
            }, 1000);
        }

        var keyCode = getKeyboardEventCode(event);
        if (keyCode in map) {
            clearKeyCode(keyCode);
        }
    };


    $scope.onKeyDown = function(event){
        var keyCode = getKeyboardEventCode(event);
        if (keyCode in map) {
            map[keyCode] = true;
        }
    }


    var getKeyboardEventCode = function (event) {
        return parseInt((window.event ? event.keyCode : event.which));
    };

    function clearKeyCode(code){
        map[code] = false;
    }

    $scope.data = {
      'message1': '',
      'message2': ''
    };
});

解决方案

As said in the comment. Your code works actually well . Using chrome on macOS, when i press "SHIFT + P + RIGHT ARROW" and release the keys i see both messages.