JavaScript 从嵌套循环退出

JavaScript 从嵌套循环退出

<html>
   <body>
      <script>
         document.write("Entering the loop! <br /> ");
         outerloop:  // This is the label name

         for (var i = 0; i < 5; i++) {
            document.write("Outerloop: " + i + "<br />");
            innerloop:
            for(var j = 0; j < 5; j++) {
               if(j > 3 ) break ; // Quit the innermost loop
               if(i == 2) break innerloop; // Do the same thing
               if(i == 4) break outerloop; // Quit the outer loop
               document.write("Innerloop: " + j + " <br />");
            }
         }
         document.write("Exiting the loop!<br /> ");
      </script>
   </body>
</html>