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Perl的 IO 操作太繁琐了
看来看去，所有提到 Perl IO操作的地方，都说要用 FILEHANDLE。每次都是 filehandle，用之前要绑定，用完了要解除，烦都烦死了。总共代码没几句，读一个文件就是两句，open一句close一句。读入之后还有个奇葩的 chomp…… 不明白当初设计这样的读取方式是何意。语法糖都这么多了，顺手就把这个换行给去了嘛，非得让人手动来一下。偏偏这个chomp还不返回截掉尾巴后的字符串，只返回截掉了几个。不爽不爽，真心不爽。
还有那个if 后置，既然这样设计了，为啥不到位点呢，直接把 if .... else 都给弄进去得了，比如 xxxxx if yyyyy or else zzzzzz。 那样写起来多流利。如果 or else 这样两个字合起来的不好做，那就搞一个 oresle 这样的嘛。xxx?yyyy : zzzzz 这样虽然也能用，但一看就是抄C的，而且一点也不自然。
如果让我设计 IO 操作的部分，我绝对会设法把 <$filename> 给弄成直接读取文件。现在这表达式给了从命名文件handle中读文件，简直让人吐血。既不容易记忆又没多少人用。反正我看到的大多还是沿用 BARE WORD那种大写字母当 filehandle的形式。至于那个 typeglob，更是捣乱。 <$hash{$file}> 这样就是 typeglob， <$file > 这样也是typeglob，<$file>却是从名字句柄读文件，这存心就是挖坑让人跳啊。而且 $ 这符号实在是滥用了。 标量用这个，各种reference也用这个，filehandle也要用这个。虽然说后面这些都可以认为是标量，但标量跟标量毕竟是不同的啊，操作方式都不一样，你都凑一起，搞的好像类型很少的样子，掩耳盗铃么？
Wed, 24 Oct 2012 04:05:58 +0000
用 Python 吧。唯一不能直接满足你的地方只是不能自动去掉从文件读入的换行符。
Wed, 24 Oct 2012 11:35:18 +0000
http://www.tizag.com/perlT/perlif.php
perl支持if else的呀....
Thu, 25 Oct 2012 00:51:37 +0000
额，它当然支持 if else。 我说的是当 if 后置的时候。比如说 say if defined 这种
Sat, 03 Sep 2022 09:28:59 +0000
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Thu, 27 Oct 2022 05:51:17 +0000
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