functionshowAndHidden1(){  vardiv1=document.getElementById("di" />   functionshowAndHidden1(){  vardiv1=document.getElementById("di" />   functionshowAndHidden1(){  vardiv1=document.getElementById("di" />
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如何通过display或visibility来实现HTML元素的显示与隐藏

  <html>
 
  <head>
 
  <title>HTML元素的显示与隐藏控制</title>
 
  <scripttype="text/javascript">
 
  functionshowAndHidden1(){
 
  vardiv1=document.getElementById("div1");
 
  vardiv2=document.getElementById("div2");
 
  if(div1.style.display=='block')div1.style.display='none';
 
  elsediv1.style.display='block';
 
  if(div2.style.display=='block')div2.style.display='none';
 
  elsediv2.style.display='block';
 
  }
 
  functionshowAndHidden2(){
 
  vardiv3=document.getElementById("div3");
 
  vardiv4=document.getElementById("div4");
 
  if(div3.style.visibility=='visible')div3.style.visibility='hidden';
 
  elsediv3.style.visibility='visible';
 
  if(div4.style.visibility=='visible')div4.style.visibility='hidden';
 
  elsediv4.style.visibility='visible';
 
  }
 
  </script>
 
  </head>
 
  <body>
 
  <div>display:元素的位置不被占用</div>
 
  <divid="div1"style="display:block;">DIV1</div>
 
  <divid="div2"style="display:none;">DIV2</div>
 
  <inputtype="button"onclick="showAndHidden1();"value="DIV切换"/>
 
  <hr>
 
  <div>visibility:元素的位置仍被占用</div>
 
  <divid="div3"style="visibility:visible;">DIV3</div>
 
  <divid="div4"style="visibility:hidden;">DIV4</div>
 
  <inputtype="button"onclick="showAndHidden2();"value="DIV切换"/>
 
  </body>
 
  </html>







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