获取键盘码：
$(function () {
//键码获取
$(document).keydown(function (event) {
alert(event.keyCode);
});
})
屏蔽键：
//屏蔽鼠标右键
$(document).bind('contextmenu', function (event) {
return false;
});
$(document).keydown(function (event) {
//屏蔽F5刷新、Ctrl+R刷新
if ((event.keyCode == 116) || (event.ctrlKey && event.keyCode == 82)) {
event.keyCode = 0;
return false;
}
//屏蔽shift+F10菜单
if (event.shiftKey && event.keyCode == 121) return false;
});
//相关说明
http://www.cssue.com/javascript-jquery
JavaScript键盘事件
http://www.htmleaf.com/ziliaoku/qianduanjiaocheng/201512052869.html
