如果从准确的角度来说,那PHP文档是最准确的,因为它很简练的列出了实现文本类文件触发下载所需要的三条语句,以PDF为例就是: 复制代码 代码如下: // We'll be outputting a PDF header('Content-type: application/pdf'); // It will be called downloaded.pdf header('Content-Disposition: attachment; filename="downloaded.pdf"'); // The PDF source is in original.pdf readfile('original.pdf');