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php while循环控制的简单实例_php实例

WBOY
WBOYOriginal
2016-06-16 08:41:08851browse

while循环是PHP中最简单的循环,其基本格式为:

while (expr){ 
  statement 
} 

或者

while (expr): 
  statement 
endwhile; 

 

该语法表示,只要expr表达式为TRUE,那么就一直执行statement直到expr为FALSE为止,statement表示要执行的动作或逻辑。

 

<&#63;php 
$i = 1; 
while ($i <= 10) { 
  echo $i; 
  $i++; 
} 
&#63;> 

该例子循环输出1到10。

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