JavaScript 实现键盘方向键翻页功能

JavaScript 实现键盘方向键翻页功能

今日从网络获取此功能，颇具价值，日后可在文章内集成该功能。

var re = /<a href=[\"\']?([-=\w\.\/\?]+)[\"\']?>[\[\(<]?上一页[\]\)>]?<\/a>/igm;

if (window.document.body.innerHTML.search(re) >= 0) {

var PREVIOUS_PAGE = RegExp.$1;

若匹配到“上一页”，则定义 var PREVIOUS_PAGE = RegExp.$1;

var re = /<a href=[\"\']?([-=\w\.\/\?]+)[\"\']?>[\[\(<]?下一页[\]\)>]?<\/a>/igm;

if (window.document.body.innerHTML.search(re) >= 0) {

var NEXT_PAGE = RegExp.$1;

若匹配到“下一页”，则定义 var NEXT_PAGE = RegExp.$1;

if (typeof PREVIOUS_PAGE == "string" || typeof NEXT_PAGE == "string") {

document.onkeydown = function() {

switch (event.srcElement.tagName) {

case "INPUT":

case "TEXTAREA":

case "SELECT":

break;

default:

if (event.keyCode == 37 /* Arrow Left*/ && typeof PREVIOUS_PAGE == "string") {

window.location.href = PREVIOUS_PAGE;

else if (event.keyCode == 39 /* Arrow Right */ && typeof NEXT_PAGE == "string") {

window.location.href = NEXT_PAGE;