读程式码，理解它并查证它。
对小网站来说这ok，但是很快你就会失去控制，乱七八糟的程式码将很难理解与维护。
That’s fine for small sites, but it can quickly get out of control, resulting in reams of messy code that is hard to understand and to maintain.
我理解为何你说使用除错程式只是短期投资以及专业人士不应如此短视近利。这说法很酷。
I can see why you're saying that using a debugger is a very short-term investment and that professionals should not make long term investments, that's cool.
现在您既然已经理解了缓存设计的一般原则，就可以开始考虑该方程式
Now that you understand the general principles for cache design, you can begin to consider this equation
他的话让我回忆起了第一次领悟到迪拉克量子力学方程式时的那种惊喜，第一次理解爱因斯坦相对论时那种兴奋。
He recalls for me this thrill on grasping for the first time Dirac's equations describing quantum mechanics, or those of Einstein describing relativity.
登到山坡的一半时，我摇摇晃晃的停下来，呼吸稀薄的空气，这时，距离我能够理解爱因斯坦或狄拉克的方程式的高度还相差很远。
Midway up the slope, however, I staggered to a halt, gasping in the rarefied air, well before I reached the heights where the equations of Einstein and Dirac would have made sense.
登到山坡的一半时，我摇摇晃晃的停下来，呼吸稀薄的空气，这时，距离我能够理解爱因斯坦或狄拉克的方程式的高度还相差很远。
Midway up the slope, however, I staggered to a halt, gasping in the rarefied air, well before I reached the heights where the equations of Einstein and Dirac would have made sense.
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