一,效果图。

二,代码。

- <!DOCTYPE html>
- <html>
- <head>
- <meta charset="utf-8">
- <title>javascript break和continue语句</title>
- </head>
- <body>
- <!--break语句-->
- <p>点击按钮,测试带有brak语句的循环</p>
- <button onclick="myFunction()">点击这里</button>
- <p id="demo"></p>
- <script>
- function myFunction() {
- var x = "",
- i = 0;
- for (i = 0; i < 10; i++) {
- if (i == 3) {
- break;
- }
- x = x + "the number is" + i + "<br>";
- }
- document.getElementById("demo").innerHTML = x;
- }
- </script>
- <!--continue语句-->
- <p>点击下面按钮来执行循环,该循环会跳过i=3的步进</p>
- <button onclick="myFunction()">点击这里</button>
- <p id="demo"></p>
- <script>
- function myFunction() {
- var x = "",
- i = 0;
- for (i = 0; i < 10; i++) {
- if (i == 3) {
- continue;
- }
- x = x + "the number is" + i + "<br>";
- }
- document.getElementById("demo").innerHTML = x;
- }
- </script>
- <!--javascript标签-->
- <script>
- cars = ["BMW", "volvo", "Saab", "Ford"];
- list: {
- document.write(cars[0] + "<br>");
- document.write(cars[1] + "<br>");
- document.write(cars[2] + "<br>");
- break list;
- document.write(cars[3] + "<br>");
- document.write(cars[4] + "<br>");
- document.write(cars[5] + "<br>");
- }
- </script>
- </body>
- </html>

参考资料:《菜鸟教程》