代码示例:(标识:jsck_state_break_label)
<!DOCTYPE html>
<html>
<body>

<p id="demo"></p>

<script>
var cars = ["BMW", "Volvo", "Saab", "Ford"];
var text = "";

list: {
  text += cars[0] + "<br>"; 
  text += cars[1] + "<br>"; 
  text += cars[2] + "<br>"; 
  break list;
  text += cars[3] + "<br>"; 
}

document.getElementById("demo").innerHTML = text;
</script>

</body>
</html>
运行结果: