JavaScript中Break和Continue


 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>


  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

 

本文作者:

 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>


  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

 

本文作者:
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