我讨厌c++的五个方面

联系时间。使用分布式构建，我可以在同一时间重新构建我们的整个项目，它需要我们的链接器运行。 没有防止内存操作重新排序的标准方法。使用写组合内存通常需要滥用volatile关键字。防止读重排序(在处理SIMD数学管道时通常是优化的关键)通常是通过在例程中间注入空ASM块来实现的。 多步宏来解决字符串化问题:

#define STR_LINE2(x) #x
#define STR_LINE(x)   STR_LINE2(x)
#define LINE_NUMBER STR_LINE(__LINE__)

做字符串操作通常是很痛苦的。 大量的非标准化printf变体(vsnprintf_s vs _vsnprintf_s)。

C#

当被枚举的集合中的对象发生变化时，foreach命令弹出， UI控件吐出假人，因为它们在错误的线程上访问。当然是所有的调度员。调用可以移动到CLR管道， PInvoke，编组等， 我浪费了两年时间学习远程遥控， 它没有露比性感。

R

不是我最喜欢的语言，但我经常使用它，有很多抱怨……

S3对象只是美化了的列表，S4类仍然将所有数据公开给用户 赋值操作符可以是<- ->或=，参见Mike Dewar的咆哮 我的。var是一个非常令人困惑的OO语言变量命名约定，参见谷歌的风格指南 我不应该后悔使用循环 神秘的错误消息

C#

泛型参数是不变的，c# 4.0为泛型类型引入了协方差和逆变性 可覆盖的类成员必须显式地标记为virtual

Java

缺少无符号数字数据类型 基本数据类型不是对象

以下是我不喜欢Java的一些地方(它不是我最喜欢的语言):

Generics type erasure (i.e. no reified generics) Inability to catch multiple exceptions (of different types) in a single catch block Lack of destructors (finalize() is a very poor substitute) No support for closures or treating functions as data (anonymous inner classes are a very verbose substitute) Checked exceptions in general, or more specifically, making unrecoverable exceptions checked (e.g. SQLException) No language-level support for literal collections No type-inference when constructors of generic classes are called, i.e. the type parameter(s) must be repeated on both sides of the '='

我偶尔会用我喜欢的PHP，而Python会用得太多。

No namespace; everything is in a kind of very big namespace which is hell in bigger environments Lack of standards when it comes to functions: array functions take a needle as a first argument, haystack as second (see array_search). String functions often take the haystack first, needle second (see strpos). Other functions just use different naming schemes: bin2hex, strtolower, cal_to_jd Some functions have weird return values, out of what is normal: This forces you to have a third variable declared out of nowhere while PHP could efficiently interpret an empty array as false with its type juggling. There are near no other functions doing the same. $var = preg_match_all('/regexp/', $str, $ret); echo $var; //outputs the number of matches print_r($ret); //outputs the matches as an array The language (until PHP6) does its best to respect a near-retarded backward compatibility, making it carry bad practices and functions around when not needed (see mysql_escape_string vs. mysql_real_escape_string). The language evolved from a templating language to a full-backend one. This means anybody can output anything when they want, and it gets abused. You end up with template engines for a templating language... It sucks at importing files. You have 4 different ways to do it (include, include_once, require, require_once), they are all slow, very slow. In fact the whole language is slow. At least, pretty slower than python (even with a framework) and RoR from what I gather.

不过，我仍然喜欢PHP。这是网页开发的电锯:你想要一个小型到中型网站的速度非常快，并确保任何人都可以托管它(尽管配置可能不同)?PHP就在那里，它无处不在，只需要5分钟就可以安装一个完整的LAMP或WAMP堆栈。好吧，我现在要回去用Python工作了……