通过jQuery的attr修改onclick

代码如下：

 
   
   var js  
  = 
    
  " 
  alert('B:' + this.id); return false; 
  " 
  ;
 
  // 
   creates a function from the "js" string 
  
 
  var newclick  
  = 
   eval( 
  " 
  (function(){ 
  " 
  + 
  js 
  + 
  " 
  }); 
  " 
  );
 
  // 
   clears onclick then sets click 
  
 
  $( 
  " 
  #anchor 
  " 
  ).attr( 
  ' 
  onclick 
  ' 
  ,  
  '' 
  ).click(newclick);
 
 

来源：changing the value of onclick with or without jQuery