function showPages(name) { //初始化属性
this.name = name; //对象名称
this.page = 1; //当前页数
this.pageCount = 1; //总页数
this.argName = 'oo=9&page'; //参数名
this.showTimes = 1; //打印次数
}showPages.prototype.getPage = function(){ //丛url获得当前页数,如果变量重复只获取最后一个
var args = location.search;
var reg = new RegExp('[\?&]?' + this.argName + '=([^&]*)[&$]?', 'gi');
var chk = args.match(reg);
this.page = RegExp.$1;
}
showPages.prototype.checkPages = function(){ //进行当前页数和总页数的验证
if (isNaN(parseInt(this.page))) this.page = 1;
if (isNaN(parseInt(this.pageCount))) this.pageCount = 1;
if (this.page < 1) this.page = 1;
if (this.pageCount < 1) this.pageCount = 1;
if (this.page > this.pageCount) this.page = this.pageCount;
this.page = parseInt(this.page);
this.pageCount = parseInt(this.pageCount);
}showPages.prototype.createHtml = function(){ //生成html代码
var strHtml = '', prevPage = this.page - 1, nextPage = this.page + 1;
strHtml += '<span class="count">当前第 ' + this.page + ' 页 共 ' + this.pageCount + ' 页</span>';
strHtml += '<span class="number">';
if (prevPage < 1) {
strHtml += '<span title="首页">«</span>';
strHtml += '<span title="前一页">‹</span>';
} else {
strHtml += '<span title="首页"><a href="javascript:' + this.name + '.toPage(1);">«</a></span>';
strHtml += '<span title="前一页"><a href="javascript:' + this.name + '.toPage(' + prevPage + ');">‹</a></span>';
}
if (this.page % 10 ==0) {
var startPage = this.page - 9;
} else {
var startPage = this.page - this.page % 10 + 1;
}
if (startPage > 10) strHtml += '<span title="前十页"><a href="javascript:' + this.name + '.toPage(' + (startPage - 1) + ');">...</a></span>';
for (var i = startPage; i < startPage + 10; i++) {
if (i > this.pageCount) break;
if (i == this.page) {
strHtml += '<span title="第' + i + '页">' + i + '</span>';
} else {
strHtml += '<span title="第' + i + '页"><a href="javascript:' + this.name + '.toPage(' + i + ');">' + i + '</a></span>';
}
}
if (this.pageCount >= startPage + 10) strHtml += '<span title="后10页"><a href="javascript:' + this.name + '.toPage(' + (startPage + 10) + ');">...</a></span>';
if (nextPage > this.pageCount) {
strHtml += '<span title="下一页">›</span>';
strHtml += '<span title="上一页">»</span>';
} else {
strHtml += '<span title="下一页"><a href="javascript:' + this.name + '.toPage(' + nextPage + ');">›</a></span>';
strHtml += '<span title="最后一页"><a href="javascript:' + this.name + '.toPage(' + this.pageCount + ');">»</a></span>';
}
strHtml += '</span><br />';
return strHtml;
}
showPages.prototype.createUrl = function (page) { //生成页面跳转url
if (isNaN(parseInt(page))) page = 1;
if (page < 1) page = 1;
if (page > this.pageCount) page = this.pageCount;
var url = location.protocol + '//' + location.host + location.pathname;
var args = location.search;
var reg = new RegExp('([\?&]?)' + this.argName + '=[^&]*[&$]?', 'gi');
args = args.replace(reg,'$1');
if (args == '' || args == null) {
args += '?' + this.argName + '=' + page;
} else if (args.substr(args.length - 1,1) == '?' || args.substr(args.length - 1,1) == '&') {
args += this.argName + '=' + page;
} else {
args += '&' + this.argName + '=' + page;
}
return url + args;
}
showPages.prototype.toPage = function(page){ //页面跳转
var turnTo = 1;
if (typeof(page) == 'object') {
turnTo = page.options[page.selectedIndex].value;
} else {
turnTo = page;
}
self.location.href = this.createUrl(turnTo);
}
showPages.prototype.printHtml = function(){ //显示html代码
this.getPage();
this.checkPages();
this.showTimes += 1;
document.write('<div id="pages_' + this.name + '_' + this.showTimes + '" class="pages"></div>');
document.getElementById('pages_' + this.name + '_' + this.showTimes).innerHTML = this.createHtml();
}
showPages.prototype.formatInputPage = function(e){ //限定输入页数格式
var ie = navigator.appName=="Microsoft Internet Explorer"?true:false;
if(!ie) var key = e.which;
else var key = event.keyCode;
if (key == 8 || key == 46 || (key >= 48 && key <= 57)) return true;
return false;
}
红色代码不起作用。。我输入字母什么的都能进去 帮我看一下 谢谢
就是这个函数不起作用showPages.prototype.checkPages = function(){ //进行当前页数和总页数的验证
if (isNaN(parseInt(this.page))) this.page = 1;
if (isNaN(parseInt(this.pageCount))) this.pageCount = 1;
if (this.page < 1) this.page = 1;
if (this.pageCount < 1) this.pageCount = 1;
if (this.page > this.pageCount) this.page = this.pageCount;
this.page = parseInt(this.page);
this.pageCount = parseInt(this.pageCount);
} 我输入大于pageCount 和小于0的都能成功 这是怎么会事啊