echo "keywords)."\"/>";
这句代码中的\与\是什么意思？这么多的"号又有什么意义？
回复讨论(解决方案)
\是用来转义的，避免"冲突
至于"还真不知道怎么说，html标准写法
转义字符！！！
转义字符 这样输出的html 结构才能保证完整
偷懒的话可以用单引号替代\"，输出如形式，浏览器也能识别
但xml和xhtml标准中，属性值是应该使用双引号而不是单引号围绕的
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