只打印0
具体个数由输入的参数n决定
如n=5就打印00000
<"0"; } "htmlcode"><"0"; } else{ echo "1"; } } "htmlcode"><"htmlcode"><"0"; break; case '1': echo "1"; break; } } echo '<br/>'; } "htmlcode"><"htmlcode"><?php $a = $_GET['a']; $b = $_GET['b']; $operator = $_GET['operator']; function calculate($a,$b,$operator) { switch ($operator) { case 'jia': $result = $a + $b; return $result; break; case 'jian': $result = $a - $b; return $result; break; case 'cheng': $result = $a * $b; return $result; break; case 'chu': $result = $a / $b; return $result; break; } } echo calculate($a,$b,$operator); ?>以上所述就是本文的全部内容了，希望大家能够喜欢。