JavaScript中Break和Continue

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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 2

      Continue

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>
<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("

")

}

</script>

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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