动态添加textarea值

  
    

   
     
   
     window.onload 
   
     =
   
      
   
     function
   
     (){
 
   
     var
   
      opinput
   
     =
   
     document.createElement(
   
     '
   
     textarea
   
     '
   
     );
 opinput.setAttribute(
   
     '
   
     id
   
     '
   
     , 
   
     '
   
     aa
   
     '
   
     );
 
   
     var
   
      a 
   
     =
   
      document.getElementById(
   
     '
   
     a
   
     '
   
     );
 a.appendChild(opinput);
 
   
     var
   
      i 
   
     =
   
      document.getElementById(
   
     '
   
     aa
   
     '
   
     );
 i.innerHTML 
   
     =
   
      
   
     '
   
     ddd
   
     '
   
     ;
}
  
    

 

 

   
     

    
      
    
      <
    
      div 
    
      id
    
      ="a"
    
      ></
    
      div
    
      >