JavaScript break 和 continue 语句
有两种特殊的语句可用在循环内部：break 和 continue。
Break
break命令可以终止循环的运行，然后继续执行循环之后的代码（如果循环之后有代码的话）。
实例：
<html>
<body>
<script type="text/javascript">
var i=0
for (i=0;i<=10;i++)
{
if (i==3){break}
document.write("The number is " + i)
document.write("<br />")
}
</script>
</body>
</html>
结果：
The number is 0
The number is 1
The number is 2Continue
continue命令会终止当前的循环，然后从下一个值继续运行。
实例：
<html>
<body>
<script type="text/javascript">
var i=0
for (i=0;i<=10;i++)
{
if (i==3){continue}
document.write("The number is " + i)
document.write("<br />")
}
</script>
</body>
</html>
结果：
The number is 0
The number is 1
The number is 2
The number is 4
The number is 5
The number is 6
The number is 7
The number is 8
The number is 9
The number is 10
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