控制 显示行数 超出提示"未完..."

Question

var str="文章内容";
var ss = str.split("\n");
var pagesize = 52;//显示的段落数
var pagec=0;
if(ss.length<pagesize)
pagec=ss.length;
else
pagec=pagesize;
for(i=0;i<pagec;i++){
document.write(ss[i]+"<br/>");
}
if(ss.length>pagesize)
document.write("未完...");

Answer 1

那就根据读出的本文的换行符分割
arr=文本.split("\r\n");

Answer 2

<script type='text/javascript'>
                          <!--
                                    function InitialContent(lblFromId,lblToId)
                                    {
                                        var lblFrom = document.getElementById(lblFromId);
                                        var lblTo = document.getElementById(lblToId);
                                        lblTo.innerHTML = lblFrom.innerText;
                                        if(lblTo.innerText.length > 80)
                                        {
                                            lblTo.innerText = lblTo.innerText.substring(0, 80) + '...';
                                        }
                                        else
                                        {
                                            lblTo.innerText = lblFrom.innerText;
                                        }
                                        lblFrom.innerHTML='';
                                    }   
//--></script>      
     
昨天我剛寫的， 差不多的，你自己替換一下，就可以了

Answer 3

判断offsetheight
如果超过设定height就启用设定height作为当前height；添加一行 “未完...” 的高度
设定overflow:hidden;
嗯

Answer 4

搞定就结帖，用“判断offsetheight”，谢谢。