JS實(shí)現(xiàn)的簡(jiǎn)單分頁(yè)功能示例

更新時(shí)間：2018年08月23日 09:11:16 作者：NanGuo_XianSheng

這篇文章主要介紹了JS實(shí)現(xiàn)的簡(jiǎn)單分頁(yè)功能,涉及javascript事件響應(yīng)及頁(yè)面元素遍歷、動(dòng)態(tài)構(gòu)造等相關(guān)操作技巧,需要的朋友可以參考下

本文實(shí)例講述了JS實(shí)現(xiàn)的簡(jiǎn)單分頁(yè)功能。分享給大家供大家參考，具體如下：

HTML部分：

<body onLoad="goPage(1,10);">
  <table id="idData" width="70%">
    <tr><td>user2</td><td>25</td><td>男</td><td>山西呂梁</td></tr>
    <tr><td>user3</td><td>25</td><td>男</td><td>山西呂梁</td></tr>
    <tr><td>user4</td><td>25</td><td>男</td><td>山西呂梁</td></tr>
  </table>
  <table width="60%" align="right">
    <tr><td><div id="barcon" name="barcon"></div></td></tr>
  </table>

js部分：

/**
 * 分頁(yè)函數(shù)
 * pno--頁(yè)數(shù)
 * psize--每頁(yè)顯示記錄數(shù)
 * 分頁(yè)部分是從真實(shí)數(shù)據(jù)行開(kāi)始，因而存在加減某個(gè)常數(shù)，以確定真正的記錄數(shù)
 * 純js分頁(yè)實(shí)質(zhì)是數(shù)據(jù)行全部加載，通過(guò)是否顯示屬性完成分頁(yè)功能
 **/
function goPage(pno,psize){
  var itable = document.getElementById("idData");
  var num = itable.rows.length;//表格所有行數(shù)(所有記錄數(shù))
  console.log(num);
  var totalPage = 0;//總頁(yè)數(shù)
  var pageSize = psize;//每頁(yè)顯示行數(shù)
  //總共分幾頁(yè)
  if(num/pageSize > parseInt(num/pageSize)){
      totalPage=parseInt(num/pageSize)+1;
    }else{
      totalPage=parseInt(num/pageSize);
    }
  var currentPage = pno;//當(dāng)前頁(yè)數(shù)
  var startRow = (currentPage - 1) * pageSize+1;//開(kāi)始顯示的行 31
    var endRow = currentPage * pageSize;//結(jié)束顯示的行  40
    endRow = (endRow > num)? num : endRow;  //40
    console.log(endRow);
    //遍歷顯示數(shù)據(jù)實(shí)現(xiàn)分頁(yè)
  for(var i=1;i<(num+1);i++){
    var irow = itable.rows[i-1];
    if(i>=startRow && i<=endRow){
      irow.style.display = "block";
    }else{
      irow.style.display = "none";
    }
  }
  var tempStr = "共"+num+"條記錄 分"+totalPage+"頁(yè) 當(dāng)前第"+currentPage+"頁(yè)";
  if(currentPage>1){
    tempStr += "<a href=\"#\" onClick=\"goPage("+(1)+","+psize+")\">首頁(yè)</a>";
    tempStr += "<a href=\"#\" onClick=\"goPage("+(currentPage-1)+","+psize+")\"><上一頁(yè)</a>"
  }else{
    tempStr += "首頁(yè)";
    tempStr += "<上一頁(yè)";
  }
  if(currentPage<totalPage){
    tempStr += "<a href=\"#\" onClick=\"goPage("+(currentPage+1)+","+psize+")\">下一頁(yè)></a>";
    tempStr += "<a href=\"#\" onClick=\"goPage("+(totalPage)+","+psize+")\">尾頁(yè)</a>";
  }else{
    tempStr += "下一頁(yè)>";
    tempStr += "尾頁(yè)";
  }
  document.getElementById("barcon").innerHTML = tempStr;
}

完整測(cè)試示例：

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>www.dhdzp.com JS分頁(yè)</title>
<script>
/**
 * 分頁(yè)函數(shù)
 * pno--頁(yè)數(shù)
 * psize--每頁(yè)顯示記錄數(shù)
 * 分頁(yè)部分是從真實(shí)數(shù)據(jù)行開(kāi)始，因而存在加減某個(gè)常數(shù)，以確定真正的記錄數(shù)
 * 純js分頁(yè)實(shí)質(zhì)是數(shù)據(jù)行全部加載，通過(guò)是否顯示屬性完成分頁(yè)功能
 **/
function goPage(pno,psize){
  var itable = document.getElementById("idData");
  var num = itable.rows.length;//表格所有行數(shù)(所有記錄數(shù))
  console.log(num);
  var totalPage = 0;//總頁(yè)數(shù)
  var pageSize = psize;//每頁(yè)顯示行數(shù)
  //總共分幾頁(yè)
  if(num/pageSize > parseInt(num/pageSize)){
      totalPage=parseInt(num/pageSize)+1;
    }else{
      totalPage=parseInt(num/pageSize);
    }
  var currentPage = pno;//當(dāng)前頁(yè)數(shù)
  var startRow = (currentPage - 1) * pageSize+1;//開(kāi)始顯示的行 31
    var endRow = currentPage * pageSize;//結(jié)束顯示的行  40
    endRow = (endRow > num)? num : endRow;  //40
    console.log(endRow);
    //遍歷顯示數(shù)據(jù)實(shí)現(xiàn)分頁(yè)
  for(var i=1;i<(num+1);i++){
    var irow = itable.rows[i-1];
    if(i>=startRow && i<=endRow){
      irow.style.display = "block";
    }else{
      irow.style.display = "none";
    }
  }
  var tempStr = "共"+num+"條記錄 分"+totalPage+"頁(yè) 當(dāng)前第"+currentPage+"頁(yè)";
  if(currentPage>1){
    tempStr += "<a href=\"#\" onClick=\"goPage("+(1)+","+psize+")\">首頁(yè)</a>";
    tempStr += "<a href=\"#\" onClick=\"goPage("+(currentPage-1)+","+psize+")\"><上一頁(yè)</a>"
  }else{
    tempStr += "首頁(yè)";
    tempStr += "<上一頁(yè)";
  }
  if(currentPage<totalPage){
    tempStr += "<a href=\"#\" onClick=\"goPage("+(currentPage+1)+","+psize+")\">下一頁(yè)></a>";
    tempStr += "<a href=\"#\" onClick=\"goPage("+(totalPage)+","+psize+")\">尾頁(yè)</a>";
  }else{
    tempStr += "下一頁(yè)>";
    tempStr += "尾頁(yè)";
  }
  document.getElementById("barcon").innerHTML = tempStr;
}
</script>
</head>
<body onLoad="goPage(1,10);">
  <table id="idData" width="70%">
    <tr><td>user1</td><td>25</td><td>男</td><td>山西呂梁</td></tr>
    <tr><td>user2</td><td>25</td><td>男</td><td>山西呂梁</td></tr>
    <tr><td>user3</td><td>25</td><td>男</td><td>山西呂梁</td></tr>
    <tr><td>user4</td><td>25</td><td>男</td><td>山西呂梁</td></tr>
    <tr><td>user5</td><td>25</td><td>男</td><td>山西呂梁</td></tr>
    <tr><td>user6</td><td>25</td><td>男</td><td>山西呂梁</td></tr>
    <tr><td>user7</td><td>25</td><td>男</td><td>山西呂梁</td></tr>
    <tr><td>user8</td><td>25</td><td>男</td><td>山西呂梁</td></tr>
    <tr><td>user9</td><td>25</td><td>男</td><td>山西呂梁</td></tr>
    <tr><td>user10</td><td>25</td><td>男</td><td>山西呂梁</td></tr>
    <tr><td>user11</td><td>25</td><td>男</td><td>山西呂梁</td></tr>
    <tr><td>user12</td><td>25</td><td>男</td><td>山西呂梁</td></tr>
    <tr><td>user13</td><td>25</td><td>男</td><td>山西呂梁</td></tr>
    <tr><td>user14</td><td>25</td><td>男</td><td>山西呂梁</td></tr>
    <tr><td>user15</td><td>25</td><td>男</td><td>山西呂梁</td></tr>
    <tr><td>user16</td><td>25</td><td>男</td><td>山西呂梁</td></tr>
    <tr><td>user17</td><td>25</td><td>男</td><td>山西呂梁</td></tr>
    <tr><td>user18</td><td>25</td><td>男</td><td>山西呂梁</td></tr>
    <tr><td>user19</td><td>25</td><td>男</td><td>山西呂梁</td></tr>
    <tr><td>user20</td><td>25</td><td>男</td><td>山西呂梁</td></tr>
    <tr><td>user21</td><td>25</td><td>男</td><td>山西呂梁</td></tr>
    <tr><td>user22</td><td>25</td><td>男</td><td>山西呂梁</td></tr>
    <tr><td>user23</td><td>25</td><td>男</td><td>山西呂梁</td></tr>
    <tr><td>user24</td><td>25</td><td>男</td><td>山西呂梁</td></tr>
    <tr><td>user25</td><td>25</td><td>男</td><td>山西呂梁</td></tr>
    <tr><td>user26</td><td>25</td><td>男</td><td>山西呂梁</td></tr>
    <tr><td>user27</td><td>25</td><td>男</td><td>山西呂梁</td></tr>
    <tr><td>user28</td><td>25</td><td>男</td><td>山西呂梁</td></tr>
    <tr><td>user29</td><td>25</td><td>男</td><td>山西呂梁</td></tr>
    <tr><td>user30</td><td>25</td><td>男</td><td>山西呂梁</td></tr>
  </table>
  <table width="60%" align="right">
    <tr><td><div id="barcon" name="barcon"></div></td></tr>
  </table>
</body>
</html>

運(yùn)行效果圖：