在Java中

String("aaa")==String("aaa") //false
//you need to use
String("aaa").equals(String("aaa")) // true

JavaScript日期全是WTF。

var d = new Date("1/1/2001");

var wtfyear = d.getYear(); // 101 (the year - 1900)
// to get the *actual* year, use d.getFullYear()

var wtfmonth = d.getMonth(); // 0
// months are 0-based!

通知7。一个有效程序的例子:

    Chomsky is a room. 
    A thought is a kind of thing. 
    Color is a kind of value. 
    The colors are red, green and blue. 
    A thought has a color. It is usually Green. 
    A thought can be colorful or colorless. It is usually colorless. 
    An idea is a thought in Chomsky with description "Colorless green ideas sleep furiously." 
    A manner is a kind of thing. 
    Furiously is a manner. 
    Sleeping relates one thought to one manner. 
    The verb to sleep (he sleeps, they sleep, he slept, it is slept, he is sleeping) implies the sleeping relation. 
    Colorless green ideas sleep furiously. 

像图灵机模拟器这样的其他愚蠢的东西可以找到。

下面是Perl调试器中的一些混乱:

  DB<1> sub foo { +(1..20) } 
  DB<2> @bar = foo(); # list of 1, 2, 3, 4...20
  DB<3> x scalar @bar # size of list
0  20
  DB<4> x scalar foo();
0  ''

这是正确的。当您像这样调用方法时，标量上下文从标量向下传播到子例程调用，将看起来无害的..变成一个完全不同的运营商。(这是“触发器”操作符，而不是范围操作符)。

In C

a[i++] = i;

它会编译，但很少执行您认为它应该执行的操作。优化更改会产生截然不同的结果。它在不同平台上的运行方式也不同。

然而，编译器对此非常满意。

交替:在许多语言中的事物之间交替:

boolean b = true;
for(int i = 0; i < 10; i++)
  if(b = !b)
    print i;

乍一看，b怎么可能不等于它自己呢? 这实际上只会打印奇数