一个JavaScript处理textarea中的字符成每一行实例

时间:2022-09-21 11:40:30
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<!doctype html>
<html lang="en">
  <head>
  <meta charset="utf-8">
  <title>每天一个JavaScript实例-处理textarea中的字符成每一行</title>
  <script>
     
      function clicka(){
        console.log("aaa");
        var aa = document.getElementById("text");
        var lines = aa.value.split("\n");
        var bbb = document.getElementById("result");
        var string = "";
        for(i=0;i<lines.length;i++){
          string+= lines[i]+"<br />";////</br> 和<br /> 应该用 <br />
        }
        bbb.innerHTML=string
        }
       
  </script>
  </head>
 
  <body>    
  <textarea id="text" placeholder="请输入多行文字"></textarea>
  <div id = "result"></div>        
  <a href="javascript:void(0);" onClick="clicka()">处理换行</a>                      
  </body>
  </html>