给DIV添加滚动条

 

直接为div指定overflow属性为auto即可，但是必须指定div的高度，如下：

<div style="position:absolute; height:400px; overflow:auto">

</div>

如果要出现水平滚动条，则： overflow-x:auto

同理，垂直滚动条为： overflow-y:auto

如果该div被包含在其他对象例如td中，则位置可设为相对：position:relative

 例如：

< HTML > 
< HEAD > 
< TITLE >测试表格内的滚动条 </TITLE> 
</HEAD> 

< BODY > 
< table >
   < tr >
     < td >表格内的滚动条: </td>
     < td >
      <div id="wins" 
        style="position:absolute;height:200;width:200;overflow:auto;background:#EEEEEE;"> 
         < p >pppppppppppppppppppppppppppppppppppppppppppppppppp  </p> 
         < p >pppppppppppppppppppppppppppppppppppppppppppppppppp  </p> 
         < p >ppppppppppppppppppppppppp  </p> 
         < p >ppppppppppppppppppppppppp  </p> 
         < p >ppppppppppppppppppppppppp  </p> 
         < p >ppppppppppppppppppppppppp  </p> 
         < p >ppppppppppppppppppppppppp  </p> 
         < p >ppppppppppppppppppppppppp  </p> 
         < p >ppppppppppppppppppppppppp  </p> 
         < p >ppppppppppppppppppppppppp  </p> 
         < p >ppppppppppppppppppppppppp  </p> 
         < p >ppppppppppppppppppppppppp  </p> 
       </div>
     </td>
   </tr>
   < tr >
     < td  colspan ="2"  align ="right" >
      <span onmouseover='scrollb=setInterval("wins.scrollLeft-=10",100)' 
                 onmouseout=clearInterval(scrollb)>向左 </span> 
            <span onmouseover='scrollb=setInterval("wins.scrollTop-=10",100)' 
                        onmouseout=clearInterval(scrollb)>向上 </span>
      <span onmouseover='scrollb=setInterval("wins.scrollLeft+=10",100)' 
                 onmouseout=clearInterval(scrollb)>向右 </span>
      <span onmouseover='scrollb=setInterval("wins.scrollTop+=10",100)' 
                 onmouseout=clearInterval(scrollb)>向下 </span>
     </td>
   </tr>
</table>
</BODY> 
</HTML>

让DIV自适应高度，不让它越界

 

style=“word-break:break-all;OVERFLOW:auto ”

public static void main(String args[]){

int[]a=new int[20];

for(int i=1;i<=20;i++){

a[i-1]=i;

try{Thread.sleep(1000);}catch(Exception e){}

System.out.println(a[i-1]);

}

}