echo "<a href='phpwan.php?pageno=($pageno+1)'>下一页<a> ";

本来就是这样啊，你应该写成。

echo "<a href='phpwan.php?pageno=" . ($pageno+1) . "'>下一页</a>"

一个是因为鱼身上水份太多，另一个是鱼没煎透就翻面了。可以先将银鳕鱼身上多余的水分用厨房纸拭去，煎的时候等一面煎透了再翻面，肉就不会烂了。下面介绍做法：

准备材料：鳕鱼3片、大蒜五瓣、黄油少许、盐少许、黑胡椒少许、海鲜酱少许

制作步骤：

1、配料:鳕鱼3片，大蒜五瓣，黄油少许，盐少许，黑胡椒少许，海鲜酱少许，鳕鱼三片,带着包装化冻,不要拆开化。

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2、化冻的鳕鱼拆开包装，用厨房纸吸去多余的水分，鳕鱼化冻水分较高，不吸干就煎很容易出水影响口感。

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3、蒜瓣切片,平煎锅中放入黄油，再放入蒜片，小火煎至焦黄。

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4、把蒜片全部捞出来不用，只用煎过蒜片的黄油煎鳕鱼。

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5、鳕鱼放入锅中，两面煎，一面煎透再翻面，以免鱼肉散烂。大约三到四分钟即可出锅，如果鳕鱼较大较厚，适当延长时间。

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6、最后撒上盐和黑胡椒,鳕鱼煎好了。

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7、装盘之前用厨房纸吸去表面多余的油。

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8、撒上酱汁即可食用。

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