//Woulda
if(x) {}
//Shoulda
else if(y) {}
//Coulda
else {}

// The freshest corpse at the back please.
m_DeadCharacters.push_back( std::make_pair(character, 0.0f) );
// Get rid of the rotting surplus
while( m_DeadCharacters.size() > 3 )
    m_DeadCharacters.pop_front();

在20世纪80年代早期的某个时候，我们在PL/I中为公用事业编写财务建模代码。接到一个客户的电话，说代码在评论之后就爆炸了

/* Honest this works */

这家伙用了我们的标准金融方程花了大约15页的代数把一堆代码组合成一个方程。在三里岛事件后，当公用事业公司不得不以巨大的代价注销他们的核电站时，这个方程失败了，因为FIXED BIN 15(整数)溢出，如果代数没有发生，就不会发生这种溢出。

一些来自Linux内核的代码:

/* Sun, you just can't beat me, you just can't.  Stop trying,
* give up.  I'm serious, I am going to kick the living shit
* out of you, game over, lights out.
*/

-

/* 2,191 lines of complete and utter shit coming up... */

-

#if 0 /* XXX No fucking way dude... */

/**
 * Always returns true.
 */
public boolean isAvailable() {
    return false;
}

永远不要依赖评论……

//When I wrote this, only God and I understood what I was doing
//Now, God only knows