源代码:
<html> <body> <script type="text/javascript"> <!-- var x = 1; document.write("Entering the loop<br /> "); while (x < 20) { if (x == 5){ // breaks out of loop completely break; } x = x + 1; document.write( x + "<br />"); } document.write("Exiting the loop!<br /> "); //--> </script> <p>Set the variable to different value and then try...</p> </body> </html>
运行结果：
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