echo '<a href="delete.php?id={$row["id"]}">删除</a>';

Question

请问这句代码的语法哪错了，就是双引号和单引号

Answer 1

把id的双引号改成单引号试试

Answer 2

$id = 3;

echo "<a href='delete.php?id={$id}'>删除</a>";