Events 同时按下两个键时获得操作
如何在同时按两个键时获得操作,例如,同时按向上和向右箭头时的操作。此示例使用JQuery,但您应该了解这一点Events 同时按下两个键时获得操作,events,html,action,Events,Html,Action,如何在同时按两个键时获得操作,例如,同时按向上和向右箭头时的操作。此示例使用JQuery,但您应该了解这一点 var down = false, right = false; $(document).keydown(function(e) { if(e.which == 40) down = true; if(e.which == 39) right = true; if(down && right) { alert("Both keys
var down = false, right = false;
$(document).keydown(function(e) {
if(e.which == 40) down = true;
if(e.which == 39) right = true;
if(down && right) {
alert("Both keys pressed!");
down = right = false; // required 'cause alert stops 'keyups'
}
});
$(document).keyup(function(e) {
if(e.which == 40) down = false;
if(e.which == 39) right = false;
});