问题
How to get at the same time two codes when i have pressed two keys on the keyboard?
In it, I only get one keyCode...
document.onkeydown = function(e)
{ var key = e.keyCode ? e.keyCode : e.which;
text.innerHTML += key; };
回答1:
look here JavaScript multiple keys pressed at once
http://jsfiddle.net/vor0nwe/mkHsU/
zsvar log = $('#log')[0],
pressedKeys = [];
$(document.body).keydown(function (evt) {
var li = pressedKeys[evt.keyCode];
if (!li) {
li = log.appendChild(document.createElement('li'));
pressedKeys[evt.keyCode] = li;
}
$(li).text('Down: ' + evt.keyCode);
$(li).removeClass('key-up');
});
$(document.body).keyup(function (evt) {
var li = pressedKeys[evt.keyCode];
if (!li) {
li = log.appendChild(document.createElement('li'));
}
$(li).text('Up: ' + evt.keyCode);
$(li).addClass('key-up');
});
来源:https://stackoverflow.com/questions/17504496/javascript-two-key-pressed-at-the-same-time