<!DOCTYPE html> <html> <body> <p>这个循环在 i=3 时跳过这一步:</p> <p id="demo"></p> <script> var text = ""; var i; for (i = 0; i < 10; i++) { if (i === 3) { continue; } text += "数字是 " + i + "<br>"; } document.getElementById("demo").innerHTML = text; </script> </body> </html>