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PHP输出一个等腰三角形的方法_PHP

WBOY
WBOYOriginal
2016-06-01 14:35:291246browse

本文实例讲述了PHP输出一个等腰三角形的方法。分享给大家供大家参考。具体实现方法如下:

function isosceles($line,$sing){
  $tab ='=';  
  for($i=1;$i < $line+1;$i++){
    $blank = print_blank($i,$line,$tab);
    $code = print_code($i,$sing);
    echo $blank.$code.$blank."<br>";
  }
}
function print_blank($num,$line,$tab){
  $blank ='';
  for($i=$num;$i<$line;$i++){
    $blank.=$tab;
  }
  return $blank;
}
function print_code($num,$sing){
  $code ='';
  for($i=0;$i<(2*($num-1)+1);$i++){
    $code.=$sing;
  }
  return $code;
}
$line = 5;
$sing = "*";
isosceles($line,$sing);

运行结果如下:

====*====
===***===
==*****==
=*******=
*********

希望本文所述对大家的php程序设计有所帮助。

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