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我对该代码有疑问,所以请尽快给我答复。
echo "<pre >";print_r($q) echo"</pre>";
打印记录的正确格式是
echo "<pre>"; print_r($q); echo"</pre>";
请在 print_r 语句后添加半列 (';')
echo "<pre >";print_r($q); echo"</pre>";
您缺少分隔符 ';' 在 print_r 之后
echo "<pre >"; print_r($q); echo "</pre>";