js 제어 자동

  
  

   
   
   
   <
   
   input type
   
   =
   
   button value
   
   =
   
   "
   
       
   
   "
   
    onClick
   
   =
   
   "
   
   t=5
   
   "
   
   >
   
   

   
   <
   
   span id
   
   =
   
   "
   
   view
   
   "
   
   ><
   
   /
   
   span>
   
   

   
   

   
   <
   
   script
   
   >
   
   
t 
   
   =
   
    
   
   -
   
   1
   
   ; 
   
   //
   
       
   
   

   
   setInterval(
   
   "
   
   testTime()
   
   "
   
   ,
   
   1000
   
   ); 
   
   //
   
      1   
   
   

   
   

   
   function
   
    testTime() {
 
   
   if
   
   (t
   
   <
   
   0
   
   ) 
   
   return
   
   ; 
   
   //
   
          0，         
   
   

   
    
   
   if
   
   (t 
   
   ==
   
    
   
   0
   
   ) 
   
   //
   
         0，  
   
   

   
    location 
   
   =
   
    
   
   "
   
   http://www.sohu.com
   
   "
   
   ;
 view.innerHTML 
   
   =
   
    
   
   "
   
   <b>
   
   "
   
   +
   
   t
   
   +
   
   "
   
   </b>
   
   "
   
   ; 
   
   //
   
         
   
   

   
    t
   
   --
   
   ; 
   
   //
   
         
   
   

   
   }


   
   <
   
   /
   
   script>